(AINA) -- According to an Iraqi government employee, who asked to remain anonymous, Muslim terrorist groups are being tipped off about Iraqi and US troop movements. In one incident in the besieged Assyrian neighborhood of Dora, where al-Qaeda entered in early March (AINA, 6-4-2007) and began imposing Islamic law on the Christian Assyrians (also known as Chaldeans and Syriacs), the terrorists had advance knowledge. According to the government employee, "even before the Americans come in the terrorists are informed and they leave, as happened in Dora, where up to 1000 cars left at midnight. At 6 AM the next morning, the Americans came but the terrorists were not there."