Tornado Modification News Today

Nature? amid the tragedy of recent tornadoes, the timeless question -- is there anything that can be done about the weather? >> we are talking about in terms of tornado modification is taboo in meteorology. a lot of my scientific colleagues are very reluctant to even talk about it. >> reporter: joe goldman worked for 40 years as a government meteorologist. taboo maybe. but golden says it is feasible. >> if you can shorten the life span of a tornado before it hits the city, you can save hundreds,...

and all eyes now on the phrase "one nation" in the gop race to the white house. just ahead, new signs those words could be sarah palin is running for president. im wolf blitzer. youre in "the situation room." but first, a heartbreaking development in joplin, missouri. all week weve been bringing you wrenching stories of those missing in the tornados wake, while at the same time holding out hope they might still be found alive. one of them, 16-year-old lance who was in his car when th...