aerostats to protect washington DC (from another board) http://finance.yahoo.com/mbview/threadview/?&bn=750535b7-bdc0-32ee-a486-7a8af9a00eb8&tid=1359797183869-8f7a9dfd-26e1-4fa5-871e-f48c75cbcd2a&tls=la%2Cd%2C0