In terms of security, Intel has been bad for a while. The last good chip was the Intel Core 2 Duo. Everything since then has had basically spyware on the processor via the Intel Management Engine. It doesn't matter if it was manufactured/designed in the US or not when you have exploitable proprietary software running on your processor. The only way to truly be free and have a decent insurance of security is with a fully open source, free system which includes your processor and bios.