hostages. first, the explosion on the u.s. side of the rainbow bridge. shutting down all four bridges in the region linking the two countries. a silver mercedes reportedly traveling as fast as 100 miles per hour bursting into flaming after it hit a concrete barrier. two people in the car killed. trevor ault is on the scene. breaking news just coming in from israel on a possible delay in that planned cease-fire and release of dozens of hostages. 50 women and children expected to be part of the deal. a 3-year-old american girl is thought to be among those who will be freed. her family now awaiting word. late word today about the high stakes negotiations going down to the wire. and after israel claimed hamas was running a command center under gaza s biggest hospital, matt gutman with the idf, as they go inside the tunnel underneath. i m not sure if that side is completely secure yet. was there a command center as israel claimed? security top of mind with millions on th