Will run in 2016. From abc news, this week with George Stephanopoulos begins now. Good morning. Im martha raddatz, and as we come on the air, new details about ebola in america, a fiery new debate. Is it fair to order mandatory quarantines for Health Care Workers returning from the hot zone, or is it an overreaction . The debate exploding this morning after one Health Care Worker says she was treated like a criminal. Plus, brandnew information on the condition of that american doctor who has ebola. Abcs linsey davis is tracking it all for us in new york this morning. Reporter Health Care Worker kaci hickox, the first highrisk traveler automatically quarantined in new jersey has tested negative for ebola but remains under mandatory quarantine. In an open letter to the dallas morning news, she says she was treated like a criminal when she returned home from treating ebola patients in sierra leone. Of her arrival at Newark Airport she writes, i sat alone in the isolation tent and thought of many colleagues who will return home to america and face the same ordeal. She says she was held for six hours grilled by officials and given only a granola bar and water detained even after her temperature was taken at a healthy 98 degrees. On saturday new Jersey Governor Chris Christie responded. Im sorry if in any way she was inconvenienced but the inconvenience that could occur from having folks who are symptomatic and ill out amongst the public is a much greater concern of mine. Reporter late saturday florida joined illinois, new york and new jersey all now imposing their own mandatory 21day quarantine far stricter than the federal requirements for highrisk travelers entering the u. S. Ashoka mukpo, the freelance journalist who recovered from the virus, says the quarantine policy threatens those on the front lines of the fight against ebola. Anything that makes it more difficult for those people to go is not the right thing to do right now. Reporter hickox is one of four people in the new york area now quarantined by state order. Another, morgan dixon, seen here returning late last night to the harlem apartment she shares with fiance and ebola patient dr. Craig spencer, who is still hospitalized. Hickoxs attorney tells abc news they believe the states quarantine policy infringes on her liberty interests, and they are preparing to challenge it. Martha. Thanks, linsey. Joining us now dr. Anthony fauci director of the National Institute of allergy and infectious diseases. Dr. Fauci, i want to go straight to the issue with this nurse. She was kept in a tent and writes in this editorial, i am scared. I am scared about how Health Workers will be treated. No one seemed to be in charge. No one would tell me what was going on and what would happen to me. Is this how people are being trained to deal with people . Well, first of all, two principles, one, we need to protect the American Public but, two, we need to make the decisions based on Scientific Data, and we know that people who are without symptoms are not a threat to transmitting it. You dont get ebola unless you come into direct contact with body fluid, so there are things that weve got to be careful which governor christie even said she was symptomatic and ill. She wasnt symptomatic and ill. No. And the point is, the Scientific Evidence is what needs to drive us. You appreciate the fears of the American People, but you dont want to have a policy that would have negative unintended consequences. So how did this happen . How did this Health Care Worker come in and be treated like that . I cannot explain that, martha. I can just tell you that what we want to do is make sure first protect the American Public but do so based on Scientific Data. We keep repeating over and over again, the Scientific Data tells us that people who are without symptoms with whom you dont come into contact with body fluids are not a threat. They will not get infected. Whats your reaction to this mandatory quarantine then in new york and new jersey . Well, as a scientist and as a health person, if i were asked, i would not have recommended that. Does it put more pressure on the cdc to change its policy . No. Should there be some National Policy . The cdc will continue to make their policies based on Scientific Data. Now, that doesnt mean that theyre cavalier about this at all. There are Different Levels of risk to a Health Care Worker, and there are Different Levels of monitoring. If you put everyone in one basket, even people who are clearly no threat, then we have the problem of the disincentive of people that we need, lets not forget, the best way to stop this epidemic is to and protect america is to stop it in africa, and you can really help stopping it in africa if we have our people, our heroes, the Health Care Workers go there and help us to protect america. We cant lose sight of that. Well, lets go back to this week and we saw nina pham released. We saw her hugging the president clearly to send a message. Right. But at the same time this week on friday, debra burger, a copresident of National Nurses united testified that the new cdc guidelines were still unclear, especially the protective equipment she said the lack of mandates and shifting guidelines and reliance on voluntary compliance has left care givers vulnerable to infection. Right now if you look at the recommendations, they are clearly more stringent than they were right now. I know because i took care of nina, and im using the recommendations, and clearly if you follow the recommendations now, and you are trained but heres the critical issue, martha. It isnt just a recommendation on left side. You have to be trained. You have to practice. You have to have people helping you put the material on and taking it off. Okay, thanks very much for joining us, dr. Fauci. Now to those stunning images of horror and mayhem captured during deadly terror attacks this week. In canada, shots fired at a National War Memorial and parliament killing a soldier, and in new york city, a hatchet attack on police officers. Both incidents carried out by socalled lone wolves, and there are new fears this morning about how many more are out there. Dan harris has been tracking the story all week. Reporter it took only seven seconds but it was devastating. A hatchet attack by this man against four new York City Police officers, one of them hit in the head before the suspect was shot and killed. Zale thompson, a 32yearold unemployed recent muslim convert who police say was selfradicalized on the internet watching isis and al qaeda. Im comfortable this was a terrorist attack. Reporter it came a day after the deadly rampage in the Canadian Capital when another 32yearold muslim convert put the city of ottawa on lockdown after killing a soldier who was guarding the National War Memorial, michael zehafbibeau stormed the Parliament Building as bystanders fled. Shots were fired, and thats when the gunman starting running again with bullets flying at him directly down this hallway. This is the incredible part. He then ran past these two rooms which were filled with members of parliament and, in fact, in this room was the Prime Minister himself. He was stopped by sergeantatarms Kevin Vickers seen here just moments after he shot and killed the suspect. Zehafbibeau unemployed with a long criminal record was reportedly frustrated over delays in getting a passport to travel to the middle east. The attack part of a worrying worldwide trend. After isis put out an online call for attacks against western targets, homegrown extremists have been either killed during their attacks or arrested beforehand in america, canada, england and australia. Terror is theater and obviously theyre trying to create and instill fear and, unfortunately, i think were going to see more of it. Reporter for this week, dan harris, abc news, new york. Thanks to dan. More on this from the chair of the House Committee on Homeland Security, congressman Michael Mccaul and matthew olsen, who was the director of the National Counterterrorism center until just last month. I would like to start with you, congressman mccaul, do you consider the attack in the new york city subway a terror attack . I do. I think all the markings are there of radical islamist ties. This is the profile of the enemy within. Selfradicalization within the United States. We worry a lot about isis traveling overseas from syria to the United States, but i think one of the greatest fears are those already within the United States who are being radicalized and inspired by the isis propaganda thats out there on the internet. They are waging a campaign of war against the west and the United States and these are three examples just last week of where theyre winning. One of the things that struck me and particularly this week with the School Shooting is worried about copycats and that people are inspired not just by isis but by seeing these other attacks. Congressman, quickly on that and then i want to go to matt olsen on that, as well. Well, i think getting attention in a lot of cases these are people in a basement radicalizing over the internet, theyre not mentally all that sound in a lot of cases and theyre very hard to stop. Thats the main point i want to make is to detect and as the fbi director comey said before my committee are really one of the most difficult to stop and like finding a needle in a haystack and then getting them out of that radical asian towards a deradicalization path. Matt olsen, again on the fears of this copycat, but is there a strategy to stop this . You know, i agree with chairman mccaul, these are very difficult to stop. I mean, this is the kind of violence weve been concerned about, this spate of violence over the last week. We need to learn more about the motivation from each of these obviously each one is under investigation. But, again, this is the kind of violence from these homegrown extremists that weve been concerned about over several years. This is not a new phenomenon. The propaganda we see from isis does give us additional concern because theyre very good at putting out their message online and seeking to, you know, have their supporters carry out attacks wherever they are and as chairman mccaul said its very hard for local Law Enforcement or the Intelligence Community to stop these single individuals who are seeking to carry out these smallscale attacks like weve seen over the past week. Lets go back to the attack in canada. Canadian Officials Say the shooter was upset because he couldnt get a passport to syria or libya. Would things have been different in the United States . Would we have been able to track him in a different way . Matt olsen . Yeah, its hard to say exactly if things would have been different. What i think this Case Highlights in canada, look, we work really closely with our canadian counterparts, as well as with Law Enforcement and services around europe and around the world. What this highlights is the need to have really good information sharing, so if we have somebody who we see who were concerned about, we need to make sure that other countries have that information, as well and the other thing is we need to make sure that information that we get on the intelligence side is shared with Law Enforcement. Thats one of the things that we worked on at the National Counterterrorism center and crossing that Law Enforcement divide to make sure that the fbi and in particular local Police Departments have the information they need to identify these individuals and stop them before theyre able to carry out an attack like this. And, congressman mccaul, your colleague, congress maman peter king said this week we need to be more closely watching muslim communities in the u. S. And go all out with surveillance and be quick to call it terrorism. Do you agree with him, that these communities should be under surveillance . Well, i was a federal prosecutor like matt, worked on fisas, and, look, surveillance of mosques is a very serious issue but what i would suggest is we have Greater Community involvement. Remember Tamerlan Tsarnaev got literally kicked out of his mosque and there was no reporting of that and maybe if there was we could have stopped that from happening. A lot of cases where they do attend mosques, there is radical behavior, and i think its more of the fbi and Homeland Security working with state and locals within the and those local Law Enforcement really have to come into play there. It seems like. Thank you very much to both of you. Thank you, martha. Now the growing outrage over dangerous defective air bags that can explode like miniature bombs inside your car. A partial recall is still sparking confusion for millions of drivers, and breaking this morning, the government safety watchdog under fire for its handling of that recall is now facing a new federal investigation. Heres abcs david kerley. Reporter the department of transportation says its going to look into how its national Highway Transportation Safety Administration handled the recall of millions of cars containing the potentially deadly equipment. The problem has been around for years. But it was just this monday that the agency told drivers to bring in their vehicles immediately and the list of affected cars was incomplete by a few million. And the website to check to see if your car is recalled crashed. On thursday a harsh accusation from two senators, the agencys response was glacial over the course of years. It all started in 2004 when afternoon are an air bag made by manufacturer takata injured a honda driver. Honda settled that case and started looking into the problem. That problem, the air bag inflater can explode too strongly in a humid climate turning the metal cap into shards of that rap knell. The response is so so quick and violent it actually expands this metal portion. Reporter but honda didnt issue any recalls until 2008 and then only for 4200 cars. The Watchdog Agency did open an investigation in 2009 but shut it down quickly. This week it was nearly 8 million drivers told they should urgently replace defective air bags used by nearly a dozen of the worlds biggest brands, but the Replacement Parts just arent there, are leaving some manufacturers in the position of offering to turn off passenger side officer bags and telling people not to sit there. Regulators say its legal. Something the senators, markey and blumenthal, say leaves them not just alarmed but astonished. For this week, david kerley, abc news, washington. Thanks, david. Now one of the senators who wrote that letter and is calling for a nationwide recall, richard blumenthal, from connecticut. Senator, we learned from that report congress is gearing up to investigate nhtsa. What should they have done and when . What they should have done is issue a National Recall, not a selective, limited recall that applies to certain geographic regions that supposedly have higher humidity. They also should require the manufacturers to issue loners or rental cars at no cost to the car owners so they can drive safely in the meantime. Disabling the air bags is of very questionable legality. In fact, id argue its blatantly illegal without a finding from the second of transportation that there is a basis for this exemption and what also needs to happen in the long run is nhtsa needs to be overhauled. It really is a prisoner of a culture of capture too close to the industry. What about the Car Companies . I mean, how much liability should they have in this . So, is the government and the Car Companies the Car Companies have a responsibility here to support a National Recall and issue these loaners and also to support an overhaul of nhtsa so that it can be much more vigilant in protecting auto safety. Senator, one of the things that was really stunning to me in reading about this case is the secrecy. Honda was settling some of these cases with people who have been injured in confidential deals with them. How does that happen and then there was no recall. That is a profoundly important point and one thats often overlooked. Thank you for asking about it. I proposed legislation that would end these secret settlements because sunshine in litlation is necessary. The public is informed about defects that lead to litigation. Too often the courts approve