Hacker News Reader

How long? Not long.

"For Americans, [the deal] will effectively abrogate Fourth Amendment protections, and subject their data to search and seizure by foreign police."

"It will grant real-time access to communications, allowing foreign police to wiretap Americans’ conversations, ignoring the high requirements for a wiretap under US law."

"These extraordinary search powers given to foreign police can be used even for relatively low-level crimes."

If you haven't heard, this is how Xkeyscore scheme is said to work to dodge 4th amendment:

US lets UK spies read US wiretaps they legally cannot, and construct dossiers from them. Then the UK side does the same.

Both then share the resulting work with each other.

Do you have proof?

The intelligence services of both countries that openly admit they cooperate with each other, they just don't say to what degree. Also Five eyes, which has been operating since the 1940s.

Snowden?

Common sense, and knowledge of previous behavior.

That's the design of the 'five eyes'. It has already been going on for a long time.