Military forces have degraded the Pakistani Taliban’s insurgency, but the Peshawar school attack demonstrates the limits of government control and lethality of rebel forces, says CFR’s Daniel Markey.

Daniel Kurtzer, former U.S. ambassador to Israel, says the West should be flexible enought to preserve political engagement with the Palestinian Authority.

Counterterrorism expert Daniel L. Byman says Hezbollah is "the most powerful single political movement in Lebanon" and remains a potent guerrilla force.