No purchase required, but it is foolish to not know what motivates the enemy. Their supposedly childish thoughts have been around and little changed for 1400 years. Robert Spencer's Politically Incorrect Guide to Islam and the Crusades is a great read and resource. Equating them to a gang of thugs needing only police attention is to seriously underestimate them.
Islam equals war upon unbelievers and recognizing that fact will help us win.
If we nuke Mecca, their religion is over and the idol they pray to is gone forever...
That will not end the war, but it is a precursor to winning it.