what does "liberty had become license" mean?
On Washington's Massachusetts Avenue Hubert Humphrey, listening to the radio of his parked car, was swept by alternate waves of anger and pity. The targets of his anger were the "refined Nazis" of Dallas, as he thought of them, and his pity was for the rest of the city, which needed so much "sympathy and understanding." Liberty, he wrote in a memorandum to himself the following day, had become license. Freedom of pression had been "perverted and abused"; it had been converted into "vehicle for vicious propaganda and hatred that inspired people to o such things as happened in Dallas to our President."