I tried to get this out at dusk, but Steve Martin and I both have a problem with doing things at dusk. This week's Tuesday links follow thusly: First, Duck-ster Phil Arena demonstrated the power of twitter as his rant on twitter about the events in Ukraine got picked up by Max Fisher of the Washington Post. Two reasons to post this--Phil's take is not only strident but also illuminating and clarifying; and it shows that twitter can cross-over to the mainstream media. Fisher has done this before, as he likes to take social science of stuff and discuss it over at his WashPo blog. Not a...