Video: Joint Chiefs Chairman worries Iran will miscalculate, says sharing intelligence with Israel

Here's the Chairman of the US Joint Chiefs of Staff, Martin Dempsey, who says that he worries that Iran will miscalculate regarding US resolve. Dempsey also says that the US is sharing intelligence on Iran with Israel.Let's go to the videotape.There would be much less danger of an Iranian miscalculation if the Obama administration were not sending mixed messages. According to CNN, the Pentagon is