TODAY | April 18, 2013
>>> back now at 7:45 on a very busy morning here. president obama and the first lady arrive in boston this morning to take part in an interfaith prayer. nbc's lester holt is there. good morning to you.
>> savannah, good morning. behind me, the cathedral of the holy cross seats about 2,000 people. half of the seating has been reserved for first responders, physicians, families of victims, politicians, and, of course, the president and first lady will be arriving here this morning. the president will speak. we also would expect him to meet with some family members although details have not been worked