Carl Levin actually said...

"Before new capabilities are deployed, they must undergo testing that enables assessment under realistic operational conditions."

"isn't it true that the currently deployed GMD system has the ability to defend the United States from a potential future Iranian long-range missile threat?"

"The old system could have been overwhelmed with just 5 Iranian missiles or more."

"The old system was a fixed-site system that could not be moved to adapt to a changing threat."