CNN Anderson Cooper 360 June 26, 2015 00:19:00
How do you make sure that somebody isn't able to go back to an area -- one of these guys isn't able to go back to an area you searched in? a difficult thing to prevent. >> absolutely it is difficult to prevent. we will go back over those if need be. we are getting a lot of tips from the public. none that have been credible thus far. getting help phone calls. some from outside the perimeter. we are ensuring we still believe they're within the perimeter. we are checking the leads, everything that comes in is getting a really good look at. >> do you know one way or another whether matt and sweat ...
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