The U.S. military has struck yet again inside Pakistan's lawless tribal areas. U.S. Predators hit an al Qaeda safe house in the Taliban-controlled tribal agency of North Waziristan. Twelve people, including five "foreigners" were killed in the attack.

The strike occurred just one day after Pakistani President Asif Ali Zardari protested the attacks. "It's undermining my sovereignty and it's not helping win the war on the hearts and minds of people," Zardari said in an interview. On the same day, a spokesman for Pakistan's Foreign Ministry described the attacks as a "violation of international law."

But the United States is stuck between a rock and a hard place on this issue. On one hand, the attacks risk destabilizing Pakistan's government and turn Pakistanis toward the extremists. On the other, U.S. intelligence strongly believes al Qaeda has regrouped in the tribal areas and is actively plotting strikes against the West, using men with Western passports.

The attacks have netted some major al Qaeda leaders this year. Abu Laith al Libi, a senior military commander in Afghanistan, was killed in a strike in North Waziristan in January. Abu Sulayman Jazairi, al Qaeda's external operations chief, was killed in a strike in Bajaur in March. Abu Khabab al Masri, al Qaeda's WMD chief, and several senior members of his staff were killed in a strike in South Waziristan in July. Khalid Habib, the leader of al Qaeda's paramilitary forces in the tribal areas, was killed in North Waziristan in October. Abu Jihad al Masri, the leader of the Egyptian Islamic Group and member of al Qaeda's top council, was also killed in North Waziristan this October.

Pakistan is complaining about its sovereignty, but refuses to accept large swaths of its northwestern province are out of its control. Until Pakistan gets a handle on the problem, the United States has no choice but to continue the attacks.