Do you believe the FBI holds the biggest number of bitcoin?
How would we know? How certain are they? We can't tell because nobody/no one would say how many bitcoins he/she has on his/her hands

I think it is their best interest to have bitcoins in case their financial status suddenly takes a turn for the worst. With these record amounts of bitcoins, they can fund their own army for years. I think if we knew their bitcoin address, we can snoop out their bitcoins snd check how much they have.