The purpose of the FBI is to assist state and local law enforcement and investigate crimes that take place across state lines.
Of course, since 9/11, they have expanded into terrorism, spying and intelligence collecting to a large degree.
PArt of the ACLU’s operations against the FBI were done in the 1970’s (re COINTELLPRO) and led by a covert (but congressionally identified member of the Communist Party USA’s security group) Frank Donner, author of the ACLU’s attack book on the Bureau, entitled “The Un-Americans”.
Donner was the ACLU Surveillance Project leader at Yale Un (or maybe it was Harvard, but Yale seems more logical due to the presence of two CPUSA members/supporters, Prof. Thomas I. Emerson (id.) and Prof. Vern Countryman (supporter), Yale Un. Law School. Emerson was Hillary’s law profesor.
The other top CPUSA anti-intelligence operative, also a member of the CPUSA’s security organization, was Frank Wilkinson, a convict, who was the leader of a CP front, the National Committee to Abolish the House UnAmerican Activities Committee/House Internal Security Committee. [THey changed the name of the committee from House Committee on UnAmerican Activities to HUAC to make it sound silly].
I need to check but I believe Nancy Pelosi once honored Wilkinson for his anti-intelligence work under the rubric of protecting our “constitutional rights”.
Many Democrat congressmen and women support NAAHUAC/HISC, including Drinan, Edwards, Kastenmeier, Burton, Abzug, Fraser, Porter, Conyers, etc. and led the fight to destroy it, which they did in 1975.
Some leading members of the ACLU in the past have been members of the CPUSA front, the National Lawyers Guild and/or its split off, the Center for Constitutional Rights (CCR).
Don’t get fooled because something says ACLU. They have done good work and they have done treason work. Be aware of just who they are.
When it comes to the real issues of internal security, they are they enemy.