Understanding terrorism: Attacks have a political logic, although they are usually ineffective, scholar says

Terrorism is clearly reprehensible. Yet media reports and politicians often present terrorist attacks as if they are less calculated than they really are.
Scientific research shows that this view is mistaken. Terrorism scholars have found that, leaving aside the question of immorality, there is an internal political logic to terrorist attacks — although they are frequently ineffective.
A lot of what people think they know about terrorist attacks is wrong. For starters, no one publicly clai