This Day in Blogging History: Politely refusing to talk to DHS checkpoints; Economist: legalizing drugs is "least bad" answer; Hidden Mickey on Mars

One year ago today
Politely refusing to talk to DHS checkpoints: Top quote: "Am I being detained?"

Five years ago today
The Economist: the "least bad" way to deal with drug problem is to legalize them: Next week ministers from around the world gather in Vienna to set international drug policy for the next decade. Like first-world-war generals, many will claim that all that is needed is more of the same. In fact the war on drugs has been a disaster,

Ten years ago today
Martian Hidden Mickey: The Spirit rover's stainless steel brushes on its Rock Abrasion Tool left behind a hidden Mickey on one of Mars's rocks.