The US _shares_ intel with the other Eyes, and within these there's layers of cooperation, with the US<->UK on top.
But this agreement concerns raw, non minimized, SIGINT (eg. direct tapping into feeds/traffic) mainly from US -> Israel.
That's pretty much what "intel sharing" is. They get other countries to spy on Americans and receive that data. In return they give their spy data on citizens of that country to that country.
That's pretty much what "intel sharing" is. They get other countries to spy on Americans and receive that data. In return they give their spy data on citizens of that country to that country.