Is Our National Infrastructure Under Attack?

Since the Boston Bombing everyone has been on edge, but is it a far fetched idea that we truly could be under attack? Possibly North Korea, Iran, Syria, ect...? A Terror Group? PLO, Black September, Hamas, Al Qaeda, ect...?

3/26 Ravensdale, WA: Huge Transformer Explosion Causes Power Outages

4/04 Bartow Country, GA: Explosion at Georgia Power Coal Fire Plant

4/06  Oklahoma City, OK: Explosion In Downtown OKC Caused By Transformer Failure

4/15 Boston, Mass: Marathon Bombing

4/ 17 West, Texas: Fertilizer Plant Explosion

4/17  Sugarcreek Boro, PA: Substation Explosion Cuts Power To Venango County Residents

4/17 Jefferson County, OH: Crews Respond To Transformer Fire At Cardinal Power Plant

4/21 Spring City, TN: Shots Fired At TVA Watts Bar Nuclear Power Plant

4/25 Mobile, AL: Multiple Explosions On Fuel Barge

The shootout at Watts Bar Nuclear Power Plant is most concerning, it could be a possible incident of a terror group preforming a reconnaissance for a future target.

The other incidents themselves don't point directly to terrorist activities, but it is something to keep an eye open over. National Infrastructure is a primary target for terrorists or foreign aggressors alike.