> We need a principle that allows for nuanced collection In fact, that's exactly what the Fourth Amendment demands. If the government has probable cause to su

> We need a principle that allows for nuanced collection In fact, that's exactly what the Fourth Amendment demands. If the government has probable cause to suspect someone of wrongdoing, they can a search warrant particularized to that one person. Authority to spy on everybody's communications is exactly the type of 'general warrant' that the Fourth Amendment was intended to prohibit.