http://www.progressive.org/mag_mc100406

"But the Secret Service did not take kindly to his comment.“About ten minutes later, I came back through the mall with my eight-year-old son in tow,” Howards recalls, “and this Secret Service man came out of the shadows, and his exact words were, ‘Did you assault the Vice President?’ ”

Here’s how Howards says he responded: “No, but I did tell Mr. Cheney the way I felt about the war in Iraq, and if Mr. Cheney wants to be shielded from public criticism, he should avoid public places. If exercising my constitutional rights to free speech is against the law, then you should arrest me.”

Which is just what the agent, Virgil D. “Gus” Reichle Jr, proceeded to do."