I read some article today how a guy and his young son saw Cheney at a mall or something, shaking hands and talking to people. He walked up to Cheney, staying a couple or three feet away and told him his iraq policy was reprehensible, then walked away. Later, as he's walking back near the same area, the secret service walks up to him asks if he "attacked the Vice President" (or they may have used the world "assaulted"). The man says "no", but they handcuff him and take him to jail anyway.
I wonder if they checked his like 7 year old son for dynamite.
I'll see if I can find the link to the article again.