Washington, D.C. ? Vice President Joe Biden said Tuesday his predecessor, Dick Cheney, is “dead wrong” when he says President Barack Obama’s national security policies are making the United States less safe.

Biden said the exact opposite is true and added that President George W. Bush’s vice president was part of a dysfunctional decision-making system.

Since becoming president, Obama has ordered the closing of the U.S. military prison at Guantanamo Bay, Cuba, and banned certain interrogation methods for suspected terrorists.

Cheney last month said the Bush administration programs involving suspected terrorists were critically important and overturning them had made the country less safe.