The U.S. doesn't need to know who they're targeting or show probable cause when ordering Facebook, WhatsApp or any tech company to help agencies spy on users in secret, newly-unsealed court documents show.

U.S. federal agencies have been using a 35-year-old American surveillance law to secretly track WhatsApp users with no explanation as to why and without knowing who they are targeting.

Doesn't include actual message content. Still very bad.