There was this conspiracy to over throw the corrupted republic. The guy leading the rebellion makes this speech about how the republic is corrupted and it sounds just like the problems we have today. Can a look at the past give you a glimpse into the future?

The speech starts after the introduction paragraph. http://ancienthistory.about.com/od/conspiracyofcatiline/ss/63-62-B-C-Cato-Cicero-And-The-Conspiracy-Of-Catiline.htm

This link says the conspiracy was stopped by ordering a group to infiltrate them then ambush and execute them.

under the Ambushing the Conspirators part of the page. http://ancienthistory.about.com/od/romerepublic/a/CatilineConspir.htm