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moment. we're going to begin this hour with the search for the pipe bomb suspect. pete williams joins us now. this released in the last few minutes. how does this advance our understanding of what the fbi is looking for? >> what the fbi is hoping is that somebody will see this video and think they recognize some characteristic of the person in the video. they have not said whether this is a man or a woman but there are several scenes here. this is walking down an alley between the republican national committee and the capitol hill club. the republican club near the house side. then y...

To be. see you at the top of the hour. eric: see you in 15 minutes. jenna: they say there is one in every office. the person always gets promoted but doesn't seem to deserve it. you know the type right? a study look at what traits these people have. three traits these folks exude. they're manipulative, they're narcissistic and even antisocial. all these traits seem to be helping them climb the corporate ladder. dr. charles williams, dr. chuck, as we call him, psychologist at drexel university is wading into this dangerous territory with me. dr. chuck, great to see you as always. these folks ar...

Doghouse so long he might as well get it renovated. jon: his brother instead of reaching out to help him videos the whole thing. >> reporter: all about the business. jon: patti anne, thanks. jenna: a new study look as the over all effects of extreme exercise by zeroing in on ultrarunners who cover distances longer than the 26.2 marathon distance revealing a little bit how our bodies endure with more exercise. might pale surprise you. joining us dr. kevin campbell from the university of north carolina. we've done a few stories where extreme running is an issue for the heart. you talk about that...