will include surveillance personnel that observe potential threats as well as forced protection units that help provide security to troops on the ground. the u.s. is saying this is in response to what it sees as a threat imnating from iran. the u.s. will send another troops to provide ski security for its forces already on the ground there. fred, what more is iran saying about the u.s. announcements? reporter: the iranians have had a lot of reactions to those announcements. they are continuing to say they are not behind the tanker attacks and don t see the move of u.s. sending the 1,000 troops as being defensive.