Intruder breaks through White House security

Telegraph | News | Intruder breaks through White House security: "Security measures put into place at the White House as a result of the 1995 Oklahoma City bombing and September 11 attacks include: police presence on White House grounds and in surrounding areas; uniformed Secret Service Officers on the roof of the White House and some nearby buildings, surveillance cameras; reported motion sensors in some parts of the compound and what appeared to be an anti-aircraft missile battery atop a building."


"anti-aircraft missile battery atop a building"

hmmm...since 1995?