TODAY | September 30, 2012
>>> the part of the country -- you returned from where the insider attack occurred. what are troops saying about it over there?
>> yeah, i was in the east part of the country here looking at special operation forces now partnering with their afghan partners. there were afghan commandos alongside american commandos, live weapons fire. they say this is what they have to do. this is the mission to train and eventually get afghan forces ready to take over. they can't afford a pause in these operations, but they're all thinking about this. every soldier i've spoke ep to about this admits they are uncomfortable. these insider attacks give them pause but at the same time there is an operational tempo they have to keep. richard engel joins me here in our location in kabul. you have new details about the attack that happened in the east here this morning.
>> reporter: 20% of u.s. combat deaths are now caused by these insider attacks. this latest one took place yesterday in wardak province . the american troops were setting up a checkpoint there, a vehicle control point, two afghan soldiers approached. we're not sure what is said. then one of these two soldiers pulled out his weapon, opened fire, killed one american soldier , killed one american contractor. then other american troops in the area responded and they killed at least three afghan soldiers and we're still waiting for some clairification on exactly what happened from the afghan government and the u.s. government is trying to put together a consistent story.
>> you know u.s. troops have been on high alert all weeklong, everywhere i've gone with u.s. troops , and even in cases where we're able to relax a bit and take off our body armor , there are some soldiers that remain armed and ready. these are the guardian angels now in many cases on alert.
>> reporter: well, right now the mission is for american troops and marines to stay with the afghans, to train them, to be partners, buddies, if you will. but at the same time they're being told keep your distance. so when medical training takes place, when fire exercises take place, now american troops will have a bodyguard standing by, and that definitely erodes trust and it cuts away at the mission. for years we've been seeing orders coming down telling american troops, take off your helmets, take off your sunglasses, and now we're seeing orders, yes, build trust but make sure you have a bodyguard present.
>> richard engel with me in kabul. richard, thank you very