logical weapon repositories =- can be secured. The US Defense Department recently estimated <http://www.nti.rsvpl.com/gsn/article/us-calculates- big- mi=itary-footpri nt- may-be-needed-guard -syrian-chem ical-arms/?mgh. http%3A%2F=2Fwww. nti.org&amp;mgf=1> that it would take more than 75,000 US military personnel