We have seen this before. A foreign entity attacks American persons or property and the government warns that its sleeper cells have infiltrated the United States and it is somehow necessary to expand the powers of the government and shrink protections for civil liberties -- and this shrinkage will somehow keep us all safe. The premise of this deeply flawed argument is that less liberty produces more safety. That premise is historically and morally erroneous. Even if we had cops watching us on...