I mean... it's like sending a police officer to a store where someone has threatened to rob it beforehand.
If the FBI wants to investigate someone who has said they're determined to kill people with a bomb, I don't have a problem with them surveiling that person.
If I attended a protest like Occupy Wall Street or something, and gmailed my friends about it. Then, a year later, was told that I can't board an airplane because I'm on a no-fly list.
Anyone remember this? This was 3 years ago.
"A US government-mandated backdoor allowed China to hack into Gmail"
"In order to comply with government search warrants on user data, Google created a backdoor access system into Gmail accounts. This feature is what the Chinese hackers exploited to gain access."
http://www.cnn.com/2010/OPINION/01/23/schneier.google.hackin...
Why do you think this isn't happening presently? Are you aware of the IRS's targeted scrutiny of certain groups applying for 501c3 status? This does not directly relate to the NSLs being discussed here, but it is an indication of how politics enters government agencies.
Frankly, I would be surprised if these NSLs aren't currently being used for political ends, by whomever has access to their use.