Militants strike again.

ADEVASTATING sectarian attack in lower Orakzai district on Friday and an attack on the Chinese consulate in Karachi a few hours earlier on the same day have bloodily underlined that the country is still confronted by a complex array of militant threats. The attack in lower Orakzai district is likely to have originated from across the border in Afghanistan, with Jamaatul Ahrar or the militant Islamic State group being the likely perpetrator. The two groups are known to have sanctuaries in Afghanistan, and the attackers possibly entered Pakistan through an unfenced portion of the former Kurram agency. If the preliminary suspicions of the security apparatus are confirmed, there should be greater urgency to complete the fencing along the border with Afghanistan. Wherever possible, the Pakistani state should take whatever steps it can to prevent militants from crossing the border with Afghanistan. Ultimately, however, the issue of anti-Pakistan militant sanctuaries in Afghanistan will have to be addressed in a reciprocal manner with the Afghan government.

In Karachi, greater disaster may have been averted, but the seeming ease with which heavily armed attackers were able to reach their intended target has raised a number of questions from a security perspective. The quick reaction of the Sindh police and the paramilitary Rangers has been praised by government officials, and security personnel may have prevented more casualties and a nightmarish hostage scenario. But that should not obscure intelligence and security failures that may have allowed the...