>> and i think about these people, people there to help rescue and get through all of that rubble. they can be injured as well as the clean-up efforts or people trying to return to what might be left of their home. >> people forget that about half of injuries in tornados come in the clean-up and rescue phase. a lot of people step on nails when they're walking around, which left unattended can get pretty dangerous. people need to think about their footwear, wearing masks. there's a lot of stuff, asbestos, what not, that's been released into the air. >> and powerlines, too. we mentioned a lot of the power's out. >> that's really true. >> even covering it as part of the media, you're not prepared. you don't know what to look for. >> you think the tornado's over, but the aftermath can be really dangerous. >> thank you. president obama's tough new warning to libya's gadhafi. what he told the british