Just for the record -
All the government spying, invasions of privacy, surveillance, sexual assaults at the airport, IRS harassment, reading emails, listening to phone calls, and who knows what else, DID NOT stop this person from almost doing Mr. Trump harm.
Maybe good old-fashoned low tech police/security work using experience and instincts are all that’s necessary after all.
Having said that, the authorities should make an example of this madman.