How can we protect ourselves from this type of interception? It seems impossible. Why would any non-american customers buy US made devices? Any protections that are added can/will be bypassed if the US gov gets physical access (or even remote).
Just about the time of the previous revelation of computers from outside the US being intercepted by TLAs, my new Lenovo was delayed for a long time in some customs facility (according to UPS tracking).
Software is not a concern as I blew away the preinstalled and put a relatively trusted OS on. But hardware - I haven't had time to look into it but I'm still wanting some sort of guide on what to look for after unscrewing the case.
The scary part is that blowing away the OS install won't save you completely. There are BIOS, firmware attacks, to name a couple. Take a look at the following link with information about persistent root access via hard drive firmware hacking. Even if you reinstall the OS, your box will continue to be owned: