Andy Carvin, NPR's head of “social media,” on the rooftop of NPR in Washington, DC. (Ricky Carioti/The Washington Post)

Every since the unrest started in the Middle East, Carvin has been furiously tweeting up a storm, acting as kind of news anchor, collecting witness accounts, crowd-sourcing translations, and otherwise funneling a huge amounts of news through his account each day.

The Post’s Paul Farihi took a long look at the man whose “metabolism seems permanently set on ‘Go!’”

Here’s one example of how Carvin’s tweeting works, as seen through his use of asking his followers for help to debunk rumors that Israeli weapons were be used in the airstrikes against Libya: