larry: anderson cooper is standing by. he s in l.a. all this week. it s great to have him here. he ll be with you at the top of the hour on ac 360. what s ahead. we re looking at tea partiers, all agreeing nothing is getting done in washington. where they don t agree is how to fix it. we ll also talk to congressman ron paul and his son who is running for senate. an assassination caught on security footage in a hotel in dubai. minute by minute surveillance of some of the members of an alleged hit squad being used in an international manhunt to try to track them down. they killed a member of hamas. it s an incredible story of espy naj and assassination. also, imagine living in fear that the child you re trying to help by adopting may actually try to kill you. it s a reality by parents adopting internationally only to have the kids threaten to shoot them, stab them, burn down the house. tonight we go up close.