correspondent richard engel in cairo, egypt. >> reporter: craig, by now there's a familiar scenario explaining what happened in these two separate attacks. that these internet videos were being seen here in egypt, they were being talked about by some radical preachers in this country, people got enflamed, particularly hardline muslims who are the most hardline of sunni muslims and they let their emotions get the best of them. they climbed on top of the u.s. embassy walls. they entered inside the compound. they pulled down that flag. that as far as we can tell is pretty much what happened in egypt. what happened in libya was not nearly as spontaneous. that was a commando attack. now, it may have also been inspired by these hateful internet videos, but it wasn't -- it didn't have a feeling of spontaneity. it was a militant, a commando