Hacker News stories for 3 AM on Sunday Apr 22, 2012

0.626 Iran building copy of captured US drone comments

0.594 How Niche Content Sites Can Build And Keep Audiences comments

0.317 I’d like to introduce you to … the Herrenknecht EPB Shield TBM comments

0.169 AT&T’s Watson APIs Let Apps Recognize Speech comments

0.142 11 Steps To Speed Up Your Wordpress Site comments

0.022 Latest Updates for your Android Device comments