I'm assuming the Bears comment was a typo.No government controls bears. And regarding the "tyrannical government", that's why the three branches have checks and balances, so that one can never take control over the other two. Furthermore, the Constitution can be changed. Jefferson himself said that Constitutions are not fixed.
The three branches of govt are supposed to work as a checks and balances system with the "press" acting as a watchdog over them all. Well the press has become a lapdog for the most part and the executive branch of late has taken way too much power while the legislative branch is inept.