Admit it: we've all lied on occasion. A fib here, an untruth there. Often these are nothing more than a way of evading embarrassment or side-stepping guilt. But history has recorded some truly notorious examples of brazen dishonesty and callous deception that have had dire repercussions—indeed, sometimes tragic consequences—for the individuals concerned and society as a whole.
Click through the following gallery and take a look at some of these flagrant falsehoods, fabrications, and cover-ups.