At least 12 people were killed and 27 others wounded on Tuesday in an attack on Pakistan’s capital, Islamabad, according to officials. It was the first major attack to hit the city in more than a decade and comes as Pakistan is facing a resurgence of assaults by several insurgencies. An attacker detonated a bomb near the entrance of a courthouse around lunchtime, according to the Pakistani interior minister, Mohsin Naqvi. He said the attacker had tried but failed to enter the court complex, with hundreds of lawyers, defendants and judges inside. The attacker died at the scene, the authorities...