that could be hitting the homeland. the u.s. homeland. that said, what does the president do? i think the most conventional and i think wisest policy would be to frame a message of solidarity but not to interrupt his trip. if he were to do so, it would be pretty jarring thichb this was not an attack on the u.s. and that he is about to meet with the brits and the others. they are proceeding with their business. the whole theory in response to terrorism is to not let the terrorists succeed more fully by changing our lives any worse than this horror has already done. i mean, now, obviously people are going to reexamine how we handle large venues. it s some comfort perhaps that it happened in the outer area, the ticket lobby, and nearest to the train administration. not inside the concert itself. but that could just be because perimeters have been toughened up and this was not as soft a