Sorry all, this is a question I should know, and have briefly looked up, but can't get enough facts on...
What is the relationship to all these agencies in the Marvel U? Are they all even in the Marvel U? And if so, how do they relate to each other?
It seems like with Shield being so powerful that there might not be a need for the other agencies, but that is also not very realistic and I'm sure there are multiple government agencies in the Marvel U. that check and balance each other, right?
O.o *Seriously wondering*