I was in Sears for the first time in about 10 years, and I was amazed at the amount of U.S. made stuff there, from simple pry bars to ratchets. I picked up a set of T-handle nut drivers, since the sizes I use have walked away from my race tool box. They looked like re-badged Armstrongs, Hecho en USA and they were a good deal.
It's entirely possible it has nothing but really old stock, since there were more employees than customers in the place, and I certainly won't count on the "lifetime warranty" thing, as the place just reeks of that "going out of business" smell, but I saw a lot of U.S. made stuff in the tool section. I also don't think you can blame Sears for Irwin's stuff being made in China...