All at once, the world went searching for the meaning of "Ismail Ax". Those two words, written in red ink on one arm of Cho Seung Hui, the 23-year-old Virginia Tech student suspected of the campus shooting spree, set off a massive internet hunt by the public for clues to what might have motivated the nation's worst mass killings. Almost as soon as the Chicago Tribune's website reported that detail, which was then picked up by news organisations around the world, the blogosphere filled with theories about the possible meaning of "Ismail Ax." Hundreds of bloggers speculated on a link...