CNN The Lead With Jake Tapper April 15, 2013 20:14:00
Enforcement deeply suspicious that this was not sort of an accidental event, some sort of gas explosion or water pipe explosion, but that it was actually intentionally set. and so they're going to comb through that pretty deliberately to try and figure that out. but i will tell you at first blush, to those in the community, it looks like it was, in fact, a bombing. >> and, fran, we're told that other cities are going on heightened alert. you heard from jessica yellin our senior white house correspondent saying the white house is in something of a lockdown mode. is this just protocol? >> it is ...
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