CNN Starting Point April 18, 2013 12:34:00
Potential casualties we may find. >> reporter: any idea of the number of missing? >> i don't know that. i know 160 plus have been treated at local hospitals. we know we have several firefighters that are still missing. we have accounted for the law enforcement official in the hospital in critical condition. we're still looking for the firefighters. >> reporter: thank you very much. we appreciate it. rick swanton, the face informing us all along the way. knows there is a difficult day ahead, john. >> we have seen as you would expect in this type of blast, a lot of lacerations, some small, some ...