Even saying that the US is your friend isn't really true. The Tuskegee syphilis experiment and MKULTRA were only ended in the 70s, Orlando Letelier happened the same decade, as did the discovery of Operation Mockingbird and other Church Committee findings. Every peek we've had into that world since then continues to come up dirty too. Operation SHAMROCK was considered a big deal at the time, but we've since then allowed American intelligence to vastly eclipse anything even conceivable at the time.
Other countries programs aren't good or anything, but anyone who's deluded themselves into thinking the US is some kind of clean actor, not participating in this sort of stuff, or only using it for good is more optimistic than I could ever manage being.