May 21, 2013 -- Updated 1211 GMT (2011 HKT)
Ali Ferzat, the Syrian cartoonist whose hands were broken after he drew a cartoon critical of the regime, remains undaunted in exile and convinced that he will live and draw in Syria again.
It's one thing to use Twitter for harmless fights, but Dean Obeidallah says there's no excuse for racist, sexist, or homophobic rants
Meg Urry says loss of the failing, planet-finding Kepler satellite would be huge for NASA--but one way or another, it's a matter of time before we find signs of life on other worlds
Bruce Schneier says our government has lots of unneeded and ineffective security measures
On the news
H. Gilbert Welch