Here's a quotation from Stephen Coughlin, the [1] Pentagon's fired jihad expert (and the only Islamic Law scholar on the Joint Staff), via [2] Andy Bostom's blog:

If the Enemy in the War on Terror (WOT) states that he fights jihad in furtherance of Islamic causes that include the imposition of Shari’a law and the re-establishment of the Caliphate; and Islamic law on jihad exists and is available in English; then Professionals with WOT responsibilities have an affirmative, personal, professional duty to know the enemy; that includes ALL the knowable facts associated with the law of jihad.

Absolutely. And the fact that this is not being done, for reasons of political correctness, imperils us all.