The higher up you go, the more mistakes you are allowed. Right at the top, if you make enough of them, it's considered to be your style.
In lieu of those checks and balances central to our legal system, non-citizens face an executive that is now investigator, prosecutor, judge, jury and jailer or executioner. In an Orwellian twist, Bush's order calls this Soviet-style abomination 'a full and fair trial.