rosanne, sprawled on the street then, now, dating the firefighter who held her hand in the ambulance. jarod, whose body was littered with shrapnel one year ago, told me the attack changed his view of the world. >> the bomb is only one split second of the worst. but it is followed by endless seconds of the best, leading up to today. >> they are expecting 9,000 more runners this year than last year. estimated crowd of 1 million doubles the average. the theme of the race this year is, we will run again. dan harris, abc news, boston. >> all right. now be sure to stay with abc news as we cover this anniversary. coming up, inspiring messages of hope and lessons learned. from the survivors in boston. that is later this half hour. >> we are tracking overseas this morning. more than 100 people missing after the ferry sings off the south korean coast. 500 people were on board when the ship started taking on water. most of them, teenagers from a high school near seoul. they were heading to a resort. they had to quickly put on life jackets and jump overboard. at least two people killed. a studen