I feel it wouldn't be completely unjustified to trust NSA recommendations simply because America isn't the only country in the world with intelligence agencies.

I feel it wouldn't be completely unjustified to trust NSA recommendations simply because America isn't the only country in the world with intelligence agencies. The NSA is commonly assumed to be offensive, but part of their job is to aid in defence as well. Ensuring (malicious) foreign actors have trouble gaining information is a National interest just as much as the NSA themselves gaining access.