WASHINGTON -- President Obama convened a crisis meeting at the White House last Monday to hear a report from Adm. Mike Mullen, the chairman of the Joint Chiefs of Staff, who had just returned from Pakistan. Mullen described the worrying situation there, with Taliban insurgents moving closer to the capital, Islamabad.

"It had gotten significantly worse than I expected as the Swat deal unraveled," Mullen explained in an interview. He was referring to a truce brokered in February in the Swat Valley, about 100 miles north of Islamabad. The Pakistani military had expected that the cease-fire would subdue Taliban fighters in Swat. Instead, the Muslim militants surged south into the district of Buner, on the doorstep of the capital.

Listening to Mullen's report at the White House...