A. The military is not the only force a tyrant can use against the people. Case in point: the Gestapo and Russia's secret police.
B. There's a difference that I forgot to say: If one nutcase simply declares the president a tyrant, they will never get through the bodyguards. (By the way, presidents in the past have been assassinated by people who believed the president was harming the nation) If someone is a tyrant, enough people will fight, that the tyrant will lose.
C. People will always be armed. Don't get them paranoid.
D. A tyrant can still play the system to remove the checks and balances. Like Biomac said: the constitution can be changed. And the first thing a tyrant will do is force a removal of the second amendment. Now let's see the same tyrant try to remove the guns and ammo from people's houses. And this is a fact: if someone will try to remove guns from America, a noticable percent will fight back.



