We told you in April about the Secret Service's visit to the Axis of Evil exhibition at Columbia College's Glass Curtain Gallery. The exhibit included among other pieces a stamp by Chicago artist Michael Hernandez de Luna Al Brandtner depicting President Bush with a gun pointed at his head, with the caption "Patriot Act." In response to the Columbia incident, Jeremy Lassen created a series of photo collages which he titled "Bush and Guns" and posted them to his Flickr account. Last week, Lassen got a Secret Service visit of his own. Correction: While Hernandez de Luna curated the exhibit at Columbia, the piece I mentioned featuring Bush with gun was by Al Brandtner. Apologies for the error.