Why does the USA only let themselves spy on their citizens?

[Alex Hogendorp]

But not China or Russia?!

 

[Toji Suzuhara]

They don't. The Five Eyes is an example of the fact that they actually let foreign countries spy on their own citizens more than they do

 

[Penis Drager 2.0]

Aside from allies, as @Toji Suzuhara mentioned, it's a national security issue.
The citizens being spied on includes people privy to sensitive information. It also includes people working on important infrastructure. It also includes people working in finance or R&D for private companies.

The more US information stays in the US, the better.

 

[dick brain]

Because the enemy of the glownigger isn't China or Russia, it's you.