His choice of location along the border is a clear message to not only mexico but the u. S. Manuel, thanks. Campaigning today in South Carolina, donald trump said that waterboarding is not severe enough in the effort to pry the truth out of suspected terrorists. And from the sound of it, he and his chief rival ted cruz might like to try it on each other. In campaigns that seem unable to break out of a cycle of name calling. Major garrett is in South Carolina. Donald, i would encourage you if you want to file a lawsuit, challenging this ad claiming it is defamation, file the lawsuit. Ted cruz scoffed at donald over this ad from the cruz campaign. I am prochoice in every respect. Mr. Trump sent me a legal cease and desist letter saying stop telling the voters my record. That is objectively legally frivolous. Trump fired back calling cruz desperate the i am prolife the i do not support taxpayer funding for planned parenthood as theyre performing abortion the gop frontrunner said in a statement. Trump called cruz a liar all week. He also threat tuned sue cruz president given canadian birth. Said today he would defy Geneva Convention prohibitions and use torture to fight terrorism. Torture works, okay, torture, torture doesnt work. Belief me it works. What do you thing of waterboarding, fine. We should go much stronger than water board. Trump and cruz, won the endorsement of South Carolina governor nikki haley. If we elect marco rubio, every day will be a great day in america. A blow to jeb bush whose brother, george w. Bush met privately with haley monday. Trump picked up endorsement of the low country sportsman today. Influential hunting and fishing group. The group backed the 2012 South Carolina republican primary winner newt gingrich. The republican vote in South Carolina is on saturday. Major, thank you. Three days before the democratic caucuses in nevada, the race is as tight as it can be. In a new poll out today, clinton 4. Sanders 47. We spent a day with sanders last week, and well do the same with clinton tomorrow. At least 28 people were killed today, more than 60 wounded after a bomb hit a military convoy in turkeys capital ankara. No group claimed responsibility. Turkey is fighting a longrunning insurgency with separately today t. Turkey shelled kurdish troops in syria. Fresh evidence that last weeks ceasefire signed by the u. S. , russia and others never had a chance. Russian war planes are clearing the way for the assad dictatorship to overrun the rebels. The fiveyearold civil war created the chaos that led to isis. And Holly Williams is following this desperate fight. Reporter from bep neath the rubble of a shattered building a little boy waves his hand, telling rescue workers he is still alive. Second later they free him. Bloodied, but breathing. They also dig frantically for a baby. But when they get to this child, its too late. We cant independent leap verify these videos. But they aper to show the syrian regimes new offensive in aleppo russian air strikes. Hassan haj ali, a rebel commander who told us his men have received weapons from the u. S. And are trying to fight off the assault. When the regime kills women and children, he told us, theyre telling syrians to get out of rebel held areas. As the regime and russia bombard aleppo province, the battlefield there has become even more chaotic. Now there is evidence that groups supported by the u. S. Have started to fight each other. As they vie for territory. Hassan haj ali with u. S. Backed commanders told us theyre clashing with kurdish fighters and the Kurdish Group also receives american support. Our american friend said they would put pressure on the kurd but there is no sign that has happened. The glimmer of good news from syria today is that aid convoys carrying food and medicine, made it into places where people have been cut off by fighting. And, scott, one of the towns is media where we have seen reports of people starving to death. Holly williams on the Syrian Border for us tonight. Holly, thank you. An old Battery Recycling plant has left a neighborhood contaminated with lead. Years after a devastating war wound, a veteran battles congress and the va. The cbs overnight news will be right back. Olay total effects a skin transformation that rivals the leading Department Store moisturizer. Revives skin to fight 7 signs of aging. With olay, you age less, so you can be ageless. Olay. Ageless. sounds of birds whistling introducing new ky touch gel cr me. For massage and intimacy. Every touch, gently intensified. A little touch is all it takes. Ky touch. Theres moving. And theres moving with move free ultra. It has tripleaction support for your joints, cartilage and bones. And unlike the big osteobi flex pills, its all in one tiny pill. Move free ultra. Get your move on. Degree motionsense is the worlds first deodorant activated by movement. As you move, fragrance capsules burst all day. Motionsense. Protection to keep you moving. Degree. It wont let you down. Living well your immune system works hard to keep you on top of your game. You can support it by eating healthy, drinking fluids, and getting some rest. And you can combine these simple remedies with airborne. No other leading immunity brand gives you more vitamin c. Plus it has a specially crafted blend of 13 vitamins, minerals and herbs. So when you want to support your immune system, take airborne, today, governor jerry brown asked the California Legislature for 176 million to clean up a toxic mess near los angeles. The exide Battery Recycling plant shut down in 2014, but it left dangerous lead in the soil. Amelia vallejo no longer allows her kids to play in the yard. I didnt know i was harping my kids. Reporter her home sits a mile north of Exide Technology where according to state environmental agencies the Dangerous Levels of lead and arsenic particles into nearby communities for years. Vallejos property tested positive for lead at 1500 parts per million above levels for Hazardous Waste by california state standard. Several member of her family suffer from Serious Health conditions often associated with lead poisoning including her 5yearold disabled son. I feel like my whole family has been taken advantage. But yet, werenot getting the proper help. It is taking quite a bit of time. And once again the damage has been done. Reporter since 1981, Exide Technologies recycled car batteries in vernon, california, using a temporary permit which allowed them to side step strict state Hazardous Waste laws for 30 years. During that time the company was cited by Californias Department of toxic substances at least 10 times. Fines. Last year to avoid criminal prosecution, exide made a deal with the federal government to shut down and set aside 9 million in a trust for cleanup. I see this as a big Environmental Justice issue. Los angeles county supervisor, has been pushing the state to do more for months. She says todays 176 million plan is a start but may not be enough to make these families whole again. I think the stay failed them. I think exide failed them. Reporter state Officials Say this size of a cleanup including the plant and surrounding homes could take over 176 million. They wont know an exact amount until they get started. Scott, that is a process that could take several years to finish. Maria, thank you. A man loses a wallet and gets a letter explaining why he is not getting it back. When Riley Flaherty lost his wallet in new york he thought he would never see it again. And he wont. The other day the person who found it mailed flaherty his license and credit card with a letter explaining i kept the cash because i needed weed. The metro card because, well, the subway fare is 2. 75. And the wallet, because the it is kind of cool. Is honest about it. Flaherty was upset that the anonymous rider kept his mr. Shinys shoe shine loyalty card because he said, i almost had a free shine. We end tonight with a soldiers story. Long after his war ended he is still fighting for his dreams and for hundred of wounded comrades. Heres david martin. Reporter losing a leg in afghanistan was not about to stop kevin jaye from marrying lauren belamode last august. Another wound cast a cloud of doubt over their vows. I am looking forward to every day i have with you watching us grow from just the two of us to a family that we have always dreamed of. Reporter the roadside bomb that took kevins leg also blew away one of his testicles and damaged the other. This is the wound guys are terrified snuff. Yeah. Any place but there . When guys get hurt. Reporter they went to see, dr. Jason bromer of the shade yo grove clinic. He does make testosterone and some sperm, but far less than the average. And not enough for them to be able to conceive naturally. Reporter bromer performed in veto fertilization using a needle to inject kevins sperm directly into one of laurens eggs in the laboratory. It didnt work. After a second try, lauren tested with a home pregnancy kit. Like, 4 00, 5 00 in the morning. I woke him up. I am pregnant. I am pregnant. Reporter thats how you wok up . It was very exciting. Probably the best wakeup call you could ever in the history of wakeup calls. Reporter a sonogram confirmed it. They could see their babys heart beating. We got one baby. We have one heartbeat. Reporter okay. You know some of the guys are still pretty good. Some of your guys . Your sperm. Working the way it should be. Reporter you have been very, open in what in most couples why are you being so open . We are trying to change, you know a law in congress to allow other guys in my situation, to be able to have the family that they want, family of their dreams, and not break the bank. Reporter thats right, a current law that is the product of antiabortion politics prohibits the department of veteran affairs from covering in veto fertilization from any of uh the estimated 100 veterans who have suffered damage to. They were able to afford the 25,000 cost because her job as a teacher comes with Health Insurance that covers in vitro fertilization. Our hope is to be able to change the law. We are not really looking for handouts or anything like that. Kevin and lauren are expecting theyre baby in august. But they have done it without any help from the government which sent him to war. David martin, cbs news, frederick, maryland. Thats the cbs overnight for some of you the news continues. For others, check back with us a little bit later for the morning news. And cbs this morning. From the Broadcast Center in new york city. Im scott pelley. Welcome to the overnight news. Im michelle miller. Balance between privacy and security is pitting Silicon Valley against the u. S. Government. Apple is resisting a federal judges order to help the fbi unlock an iphone used by one of the shooters in the San Bernardino terror attack. Heres jeff pegues. Reporter the tech giant isnt backing down and is raising the stakes by accusing the government of asking apple to actually hack into its own security advancements. More than two months after syed farook and his wife malik, killed 14 in a deadly terror attack the fbi says it is missing a key piece of evidence. San bernardino, very important investigation to us. We still have one of the killers phones we have not been able to open. Reporter the phone is locked with a passcode. The government believes auto erase feature is turned on, meaning all information on the device would be deleted after several incorrect password attempts. Tuesdays ruling requires apple to disable the auto erase function on farooks phone and enable the fbi to submit pass code to unlock the phone. But the tech company is fighting back in an online letter. Ceo tim cook writes. The u. S. Government is asked us for something we simply do not and something we kid too dangerous to create. They have asked us to build a back door to the iphone. In the wrong hands, this software which does not exist today would have potential to unlock any iphone in someones physical possession. Cook previously defended apples encryption techniques with char low rose. When we design a new service, we try not to collect data. So, were not reading your email. We are not reading your imessage. If the government laid a subpoena on us to get your imessages we cant provide it, it is encrypted we dont have the key. Reporter the government says hacking the iphone could provide Key Information on who the couple communicated with and where they were before and after the shooting. On its face this case may sound like it is about unlocking a cell phone its about encryption and how information is protected. For a year, fbi director james industry for help in encryption. It isnt just affecting National Security investigations but local police are running into encryption roadblocks when it comes to solving murder cases as well. The pentagon is also trying to improve cooperation with technology companies. Charlie rose discussed encryption debate with defense secretary ash carter. The conversation took place before apples response. So if apple says it is encrypted we cant help you. What do you say . Well, im not talking about, to apple now, within our own Intelligence System with respect to the companies, we have to, we, there is a situation charlie. You and i have talked about this before. Where i am trying to build bridges between us and tech companies. Now i dont expect them to to do things to help us that, that compromise their Business International competitive but i do want to have enough bridge. The tech sector. We can work, toward possible solutions to common problems. To watch more of charlie roses interview with defense secretary carter, go to our website at cbs news. Com. In campaign 2016. The first in the south primary is just two days away. Republican frontrunner, donald trump its expanding his lead in the polls ahead of saturdays vote in South Carolina. The billionaire candidate is also firing back at president obamas prediction that trmp will not win the presidency. Here is major garrett. Reporter republicans dont take advice or cues from president obama especially true when picking a nominee. Even so the president weighed in dropping his prediction donald trump would not win the white house in the middle of the South Carolina primary. A comment that could boost support for trump among supporters who are eager to prove the president wrong and possibly even defy him. I dont think you are going to be on his Christmas Card list this year. I dont mind. Let me read you what great compliment. Donald trump wore the president s prediction like a badge of honor. I continue to believe, mr. Trump will not be president. Wrapping up a summit with asian leaders in california, president obama said voter fatigue will halt trump any white house bid. Its not hosting a talk show. Or a reality show. Reporter mr. Obama did not predict g. O. P. Primary voters would necessarily sour on trump in fact he seemed to taunt them creating a general election where trump is the gop standard bearer. People vent and express themselves, seems like entertainment, report the as entertainment. As you get closer, reality has a way of intruding. He has done such a lousy job as president. Trump was equally dismissive. You are lucky i didnt run last time when romney ran. One term president. Republicans chasing trump tried to reverse momentum here. I dont think mr. Trump has a plan other than he will be huge. When radical islamic terroristed wage jihad on the United States of america, the answer is not to tweet insults at them. On the other side of the campaign trail, democrats will vote in South Carolina a week from saturday. Hillary clinton and Bernie Sanders are competing for the support of africanamericans who make up more than half of the states electorate. Here is nancy cordes. Do you guys feel the bern . In atlanta, sanders teamed up with the rapper and joined hand with black ministers. We pray for Bernie Sanders. In harlem, clinton argued sanders was newcomer to the fight for racial equality. You cant show up election time and say the right things and hope that is enough. Relationships a few weeks before a vote. Supporters have even questioned sanders claims he was part of the civil rights movement. But this video from 1963, apares to show a young sanders, resisting arrest in chicago. He was protesting in an africanamerican neighborhood that day over the citys plan to construct a school entirely out of mobile homes. Is it him . A sanders aide told cbs news he thinks so but isnt 100 sure. We are looking into it. We have got to end racism. Reporter at morehouse, historically black college in atlanta last night. Sanders said he would reform the criminal justice system. After my first term as president , we will not have more people in jail than any other country. [ cheers and applause ] sanders and clinton have already discussed race more frequently than then senator obama did during his 2008 president ial run. But theyre also immoral. And it will be the mission of my presidency to bring them to an end. And well be right back. Important message for residents age 50 to 85. 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