Petraeus is due to testify again in April, it's an election year, and the fifth anniversary of the invasion of Iraq is on the 20th. I'd be very surprised if something doesn't hit the fan over there at the end of this month.

From this interview:

He continued: "...It is the type of attacks and the way they are planned that will be changed. Accordingly, we will be focusing on operations that cause the maximum pain and bewilderment to the enemy. This shift will open a new page in the fighting, which you will notice on the fifth anniversary of the occupation of Iraq..."

Addressing Iraq's Sunnis, Al-Jaza'iri said: "The next few months will prove decisive, and by Allah! We have prepared for this. We have humiliated the Crusaders, and have made their blood flow in the streets... And what is to come will be even worse and more bitter. Therefore, I say to those who claim that we have failed, or are paralyzed...: You will receive our answer in the next few weeks."