America demoralized

Mona Charen says that America needs a mood change:

Drawing the lessons from our 20th-century confrontation with totalitarian menaces, Ronald Reagan counseled that weakness is provocative. That insight is eternal. Today, America has the economic and military capacity to lead the world — but our psychological fitness for the part is in serious doubt. There is no end to the malevolent forces who will be eager to fill the role if we decline it — and we will find a world dominated by them far more horrifying than anything we face in Iraq.