Venezuelans have been scrambling for dollars for weeks, taking refuge in the greenback as their own currency is in free fall. Rather than address the economic imbalances behind the bolivar’s plunge, the government is going after the bearers of the bad news – it’s taking down websites people use to track exchange rates on the black market. Cyber-activists say the crackdown goes to absurd lengths, even targeting Bitly, the popular site for shortening Web addresses to make it easier to send them as links via Twitter and other social media. For more than two weeks, access to the service has been partially censored by several Internet service providers in Venezuela, apparently because Bitly was being used to evade blocks put on currency-tracking websites. The New York company says such restrictions have only previously been seen in China, which has one of the worst […]