gadhafi and his aides. secretary of state hillary clinton is calling on gadhafi to step down. she s in switzerland this morning. they ll be discussing life after gadhafi. mrs. clinton says america is reaching out to help opposition groups in libya that are trying to topple the libyan leader. that s a big issue because the opposition is not particularly organized in libya. there are fears that once gadhafi s out, it may cause a problem. right now, there s a humanitarian crisis with tunisia. thousands of refugees trying to get out of libya, trying to get anywhere and tunisia s there. there s about 100,000 of them gathered at the border with no food, no water, and no place to go. ivan watson is on the tunisian side of the border right now. when you talk about that situation, that potential humanitarian crisis unfolding, are there any plans in the works to help those people?