'intelligence agency would comment. william webster, cia director at the time of the battles told me the agency knew saddam had chemical weapons. knew he could use them. but had no specific knowledge beforehand that he would fire them. still questions of an manner connection don't end there. according to this report by the center for non-proliferation studies five years ago out of this office in washington, more than 20 companies including some from the u.s., sent hundreds of tons to the iraq regimes in the 1980s but it's not cheer if they knew the regimes were getting the materials. >> this chem weapon's expert says the companies believed the chemicals were not being used in war. >> at the time, the companies were told that the chemicals were going to textile production in belgium. >> reporter: but why did u.s. support for saddam hussein continue even after he used chemical weapons? >> weigh felt we had no choice