So much money has gone into armoring and arming local law-enforcement since 9/11 that the federal government could have rebuilt post-Katrina New Orleans five times over and had enough money left in the kitty to provide job training and housing for every one of the record 41,000-plus homeless people in New York City. It could have added in the growing population of 15,000 homeless in Philadelphia, my hometown, and still have had money to spare. Add disintegrating Detroit, Newark, and Camden to the list. Throw in some crumbling bridges and roads, too.