but i think the other one is ryan crocker coming back, ambassador. >> to afghanistan, is a of enormous proportion. a man of great skill, great knowledge and was comfortable in his retirement at the bush library and to be able to persuade him to come back, given his knowledge and working with general petraeus in the past. i think was a great -- >> just very briefly does it signal any shift in policy or is this continuing. >> no, i really don't. i think more a continuation. we have somebody intimately familiar with the problems we're facing so i think is more of a continuation. >> david brooks, mark shields, thank you very much. >> thank you. vi >> warner: again, the major developments of the day: the death count across the south hit 318 in the deadliest outbreak of tornadoes since 1932. president obama visited hard-hit tuscaloosa, alabama. prince william and kate middleton were wed at westminster abbey in london, as more than a million people cheered outside. and thousands of...