The consultant, Sheraz Daya, spent more than a month testing the stability of his patient's vision before using laser technology to correct the sight in the apparently non-functioning eye.

BBC: Thalidomide poses new challenges

The scientists across the hall are fiddling obsessively with the Volkswagen-size microscopes to see how the molecules work together, and testing their strength and stability.

FORBES: The Science of Small

Each vote will be a drama, testing the coalition's stability (and Europe's).

ECONOMIST: Why Germany is so reluctant to stump up for the euro

Clinton, who returned from Asia on Sunday after her first overseas trip as secretary of state, called North Korea's nuclear program "the most acute challenge to stability in northeast Asia" and has said there is a "testing period" at present about how diplomacy can move forward.

CNN: U.S. envoy for North Korea may visit Pyongyang