Authorities cannot afford to ignore militants who make tradecraft errors.

Militant groups' success often depends on the involvement of exceptional individuals, particularly as leaders.

Recent incidents and reports of cooperation between jihadist groups may signal a converging threat, or a false positive.

A year after the Libyan weapons stockpiles were looted, Libyan MANPADS could be almost anywhere in the world.

Even if Somali militant group al Shabaab could conduct a spectacular attack in Nairobi, it seems unlikely to have the intent.

Even a competent, well-paid and well-equipped police institution cannot stand alone in a culture unprepared to support it and help maintain its integrity.

Despite the huge rewards offered, the program has had very little luck in recent years capturing high-profile figures in Pakistan.

Government bureaucracies do not deal well with ambiguity, and terrorists tend to be very ambiguous.

Colombia's strategy against its guerrillas shows that they are a problem to be managed, not totally defeated.

Citizens can deny terrorists the psychological impact of their attacks.