necessary. >>> thanks for being with us. we'll be back at 7:25. >> good morning. developing now, new focus on the mother of the boston bombing suspects. why are u.s. investigators only learning now that she allegedly talked to one of her sons about jihad years ago? >>> rising danger. parts of the u.s. bracing for historic flooding as flash floods and dramatic rescues are down south. >>> and win a date with martha. more of our surprisingly interview with the most successful woman in the world. martha stewart went on match.com as martha stewart? >> more to help her find a date on this april 29th, 2013. >> announcer: from nbc news, this is "today" with matt lauer and savannah guthrie from studio 1a. captions paid for by nbc-universal television

matt? >> michelle kosinski in london on a tough story. thank you very much. >>> back to business in washington this morning following some fun this weekend at the white house correspondents' dinner. peter alexander was there. good morning to you. >> reporter: good morning. this is a unique weekend where entertainment, politics, news, the worlds all meet together and right out of the gate we saw the president would let his hair down, as you will see. at the dinner, there was a different vibe. ♪ >> thank you! thank you, everyone. ♪ >> how do you like my new entrance music? rush limbaugh warned you about this. second term, baby! >> reporter: on the night where washington and hollywood collide -- >> how are you doing? >> reporter: president obama didn't hold back. >> these days, i look in the miles an hour and i have to