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Wiener, however, said members of law enforcement are public servants and people need to see their faces so they can be held accountable for their actions.

"Ultimately officers are public servants, but they're also fathers, mothers, wives and husbands and sons and daughters, and the impact on their families has been really heartfelt," he said.

"What I really feel very sorry about is the fact that my husband was a great public servant," she said, adding that he had been the youngest home secretary since Winston Churchill.

During the McCarthy era in the 1950s, public servants and private citizens alike were pressured to prove their loyalty to the U.S. government to root out suspected communists.

The arrested suspect is the son of a former public servant.