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Who's living on base and he's already on the inside has access to weapons and this thing and can literally wreak havoc on the inside out. that's my biggest concern for our bases. >> we saw that happening, j.m. we saw that at ft. hood texas, a few years ago, as you remember. how much of a threat is there from someone on the inside whether a military or civilian who works for the u.s. military being recruited or inspired to go out and kill people? >> we've seen number of cases over the years with al qaeda where they specifically targeted military personnel for recruitment. what we've seen at for...

role at the republican national convention? i'm wolf blitzer. you're in "the situation room." we begin with mitt romney's preparations for what may be the most crucial week of his presidential campaign. with several new polls out including our own showing him losing ground to president obama, romney begins a bus tour on saturday through four swing states he absolutely needs to win. but he's still traveling without a running mate. dana bash is here in "the situation room" taking a closer look. these are going to be huge days the next week. >> look, the day is young traveling without...