>> connell: a new report saying scientists have detected a possible reason behind the bizarre and so far unexplained brain injuries suffered by u.s. diplomats and their families both in cuba and china. here is the headline from "the new york times." microwave weapons are prime suspect in ills of u.s. embassy workers. we have more on this story. garrett. >> these attacks on our diplomats have baffled investigators. they started in cuba and hit earlier this year in southern china. in total more than two dozen u.s. diplomats suffered dram traumatic brain damages and subtle sensations of sound and pressure. they suspected sonic attack. now they believe microwave weapons are responsible.