MIRAN SHAH, Pakistan - Government forces attacked two militant bases with helicopter gunships and artillery Tuesday in some of the army's toughest action in the lawless Afghan border region since militant attacks began surging last month. Spokesman Maj. Gen. Waheed Arshad said troops targeted a pair of compounds in Daygan, a village 10 miles west of North Waziristan's main town of Miran Shah, after they received credible intelligence that militants were there. President Gen. Pervez Musharraf, a key ally of the United States in its war on terror, is under rising pressure from Washington to crack down on militants in...