How many times do we see shooters "known by the FBI" or on FBI lists and yet no action is taken and these people end up shooting a ton of people??
Either the FBI suck at their job or they are complicit in the murder of thousands of people by "allowing" or "setting" these events up.
A corrupt government is as a judgement from God. If God's not in your efforts to eliminate government corruption, they won't succeed (certainly at least not in the way originally planned). The spiritual precedes the physical. What we need is mass soul-winning, mass repentance, church reformation, and church revival.
It all though starts with men turning to God. From there the decay can dissipate.