Check out the list of terms the Department of Homeland Security scans on social media sites to generate "situational awareness". Here's a small sampling:

• Hezbollah
• Tamil Tiger
• PLF (Palestine Liberation Front)
• PLO (Palestine Libration Organization)
• Car bomb
• Jihad
• Taliban
• Weapons cache
• Suicide bomber
• Suicide attack

Hello, DHS. Thanks for stopping by our Twitter and Facebook accounts. Maybe give us a retweet or a "like" one of these days.