(Washington Post) Jordan has arrested six Iraqis suspected of plotting to poison a water tank in the desert near the Iraqi border that serves U.S. troops, officials in Amman said Tuesday. Jordanian police also were investigating a plot by four Iraqis accused of planning to blow up an apartment complex at the Grand Hyatt Hotel in Amman. They are also investigating a plot to contaminate the water for several hundred U.S. troops at a base in Khao, 17 miles northeast of Amman.