Security,terrorist attack,Constitution and a Shakespeare quote from "Macbeth"

In an era when the insecurity implied by the threat of terrorist attack already overshadows our liberties, only one thing may be more dangerous to our freedom than such a precedent -- the fact that it comes about because of the ignorance, fear, or selfish ambition of those sworn to uphold the Constitution. If they lack the character to do so now, before abuses of executive power create an environment of physical fear and intimidation, what must we expect once those abuses produce their inevitable effect? The people mesmerized by his tinsel rhetoric may expect Obama to resist the temptations of demagogic tyranny, but if he assumes office knowing that in doing so he has already successfully set aside the Constitution, no reasonable person could agree with them. As Shakespeare wrote, "Things bad begun make strong themselves by ill." ("Macbeth," Act 3, Scene 2)