the two were arrested in july of 2009 knew the iraq-iran bored ex-along with sayre la shourd. she was released in september due to health reasons. all three say they were hiking and inadvertently crossed into iran. the families released a statement that says in part shane and josh are innocent and have never posed any threat. we appeal to the authorities in iran to show compassion and allow them to return home to their families without delay. >>> the fall of libyan dictator moammar gadhafi appears to be imminent. rebel forces are overrunning government forces in the capitol of tripoli and say they have captured gadhafi's son. here's the latest. >> reporter: outside tripoli the final push was on. the rebel advance was turned back several times during the day. with the libyan spokesman saying the regime would fight to the end. >> tripoli is well protected. >> reporter: but that defense is crumbling by the minute. >> they're running like rats. >> reporter: the heart of gadhafi's defense has retreated abandoning their uniforms as they'll flee into into the city. when their base wa