Excerpt: Ever wonder why Social Security didn't crash and burn years ago? After all, for nearly all of the program's history, each generation of retirees has taken far more money out of the system than it contributed in taxes. The answer is simple, though largely ignored in the current debate over Social Security reform. Today's retirees may not have paid anywhere near as much in taxes as today's workers do. But most contributed something far more valuable to the system: They created,[.]