Law and Terrorism
Let us take terrorists at their words, that they are waging war, in which case they can be taken legally to be specialized and trained in and conspiring to commit and actually committing war-crimes and crimes against humanity . . . .
And if they're domestic terrorists, you can add rebellion to that, the maximum penalty for which (which considering that war-crimes and crimes against humanity are involved should generally be levied) is death and total confiscation of assets.
Keywords: crimes against humanity, law, terrorism, war, war-crimes