I hate this crap, though spying on foreign leaders is nothing new. US citizens OTOH, should require a search warrant each and every time
I think it was Snowden who said that is not the case.
That's a wet tissue, actually. A friendly judge will on Thursday write you a warrant back dated to Tuesday to cover what you found without the warrant. It just has to be something you know is one of the judge's hot button issues.
Or you have to have something good on the judge or someone he cares about.