senator john hoeven joins us with reaction. don't open your doors without it. terrorism insurance is proving key for businesses in the aftermath of the boston bombing. do you ever have too much money? >> it's a win for environmentalists and a threat ich many expected this summer. joining me is the north dakota senator who wants he pipeline to be approved. citing environmental concerns, rail shipping costs, a long list, cleanup efforts as reasons not to approve the pipeline. how dammings is -- damaging is this? >> it's hard to understand. they are moving the goalpost. the state department conducte four environmental impact statements finding no significant environmental impact. now epa, after the comment period, comes back, says, well, we want to know what the social cost of greenhouse gas emissions, and, oh, we want to study pipeline safety. after that's been studied for almost five years. melissa: how big a blow is it? you expect epa to be against the pipeline. it's not surprising, and at the same time, people are making a big deal out of it. does it stop you