Delta Scientific, a leading manufacturer of counter-terrorist vehicle control systems used in the United States and internationally,has announced that 20 Delta MP5000 mobile deployable vehicle crash barriers have been ordered by the Secret Service to protect participants and observers from the new preferred method of international terrorists, using vehicles as a weapon. Provided through Global Access Control Systems (Pittsburgh), these mobile deployable vehicle crash barriers carry a K8 rating (M40 ASTM rating), stopping 7.5 ton (6400 Kg) vehicles traveling 40 mph (64 kph).