Although we had a lot of villainy here in America, Adolf Hitler was certainly the most visible illustration of what would happen if fascism went unchallenged.
At least in the West, politicians, corporations and media moguls can no longer take for granted their power to control the public discourse - and have it go unchallenged.
Aggressive conduct, if allowed to go unchecked and unchallenged, ultimately leads to war.
Washington bureaucrats have classified the very air we exhale as a pollutant and have gone unchallenged in this incredible assertion. The logical consequence is that there will come a time when we will have to buy a government permit just to emit carbon dioxide into the atmosphere from our own lungs!
These human experiments have gone largely unchallenged and unquestioned by Congress, the medical profession, and the scientific community at large.
Unchallenged, opinions became respected precedent then exceptionless concepts and sometimes even civil and academically accepted social law.
I will not let the patriot act, the most un-patriotic of acts, go unchallenged.
What an admirable training is science for the more active warfare of life! Indeed, the unchallenged bravery which these studies imply, is far more impressive than the trumpeted valor of the warrior.
No true reform has ever come to pass Unchallenged by a liar and an ass.
Most men go through life unchallenged, except at the final moment.
A perception of impossibility should never go unchallenged.
How deeply do any of us know our own selves? Ask yourself. We hold a picture of how we wish to be and hope it goes forever unchallenged. Passing through life never pursuing aspects of our natures with which we'd rather not reckon. Dying strangers to ourselves.