i'm carol docostello. i'm carol docostello. thank you for joining us. -- captions by vitac -- www.vitac.com >>> i'm ashleigh banfield. i want to take you live to the national cathedral in washington, d.c. the president and first lady michelle obama as well as the vice president are attending the national prayer service. this is a post-inauguration tradition that dates back to the days of george washington, a very important and solemn moment. we're going to do a lot more coverage as we go along through the hour about just exactly what happens during the national prayer service. but, again, a storied tradition. they happen to be inside the national cathedral, which you will probably remember was making news earlier this month because officials there said they are now planning to allow same-sex marriages in that church for the first time. you'll also remember from yesterday that same-sex marriage was one of the touch stones in president obama's inaugural address, an address, by the way, some say was a uniting address and some say