Another factor is the decision, made in 1976, to sharply divide the FBI and the foreign intelligence agencies. The FBI would collect within the United States; the foreign intelligence agencies would collect overseas.
It is a pity that instead of the Pilgrim Fathers landing on Plymouth Rock, Plymouth Rock had not landed on the Pilgrim Fathers.
I've been a fan of Metallica and friends with those guys for a long time and that was just great - half Alice In Chains and half Metallica playing together.