Secret Service demands removal of Bush+Guns collages on Flickr

I created a series of collages, entitled "Bush and Guns". I "remixed" pictures of Bush (from the AP Photo wire) and guns (randomly found on Flckr)... I posted these new images to Flikr, as a set entitled "Bush and Guns". With each picture, I posted a link back to the original story, with an explanation that the collage series was a commentary on this incident in Chicago. I posted this set to several "anti bush" political groups on Flikr, and received some positive feedback on them. I also urged others to create "Bush and guns" artwork, and post it online, as a sort of protest against actions and policies, that, to my mind, have a chilling effect on people's first amendment rights."..."The agents started out with "easy" questions, like my name, address, what I did at my job, etc. Then they started asking if I've ever been under psychiatric or psychological care or counseling.