Making accusations of treason or disloyalty without proper evidence.
Explanation:
McCarthyism is the period which lasted from late 1940's till 1950's. This period was called as second Red Scare. The term McCarthyism is used to refer 'Accusing someone or treason without evidence'. During McCarthyism political repression, campaign to spreading fear against communists and espionage was rampant. During this era many Americans were accused as communists.
Well he is basically letting serial killers go off onto the streets and into everyday peoples lives. They will involve themselves with people and eventually kill or cause harm to people again. They wont learn from there mistakes if they dont get punished for them.
