See this report at The New Standard. It begins: ” Constituents who want to send e-mail to some members of Congress now must answer a simple math problem in order to get their message through. Congress members say the new ‘logic puzzles’ are necessary to cut down on ‘spam,’ but activists are decrying the requirement as a barrier to democracy….’Congress long ago did away with the literacy-test qualification to vote,’ said Caroline Fredrickson of the American Civil Liberties Union in a press statement. ‘Apparently, members of Congress acknowledge you shouldn’t have to pass a test to vote for them, but they don’t want you to contact them without taking a quiz.'” See also this Washington Post report.