The Power Of 30

It has been long noted that various insurgents and other ne'er-do-wells, often including - alas! - the poor shlubs attending Afghan wedding parties, tend to be dealt with in groups of 30:

http://www.moonofalabama.org/2009/05/around-the-hindu-kush-30-is-a-magic-number-an-update.html and http://securitycrank.wordpress.com/2009/12/07/winning-the-war-30-taliban-at-a-time/ demonstrate that all that money that's been spent forever on Weapons of Mass Destruction has been wasted, for nothing is as effective as a good old "30 whacker" made of birch and bone...or whatever....maybe a sling like David's with the power of 30.