You are trying to install or open an app that didn't come from the Mac App Store but you got a message saying App can't be opened because it is from an unidentified developer. This is how you bypass it.
The space shuttle Endeavour made its final journey, traveling 12-miles from Los Angeles International Airport, through Inglewood, to the California Science Center in Exposition Park.
Ig Nobel Prizes are given to serious scientists where result of research is to make people laugh, then make them think. Now they have just announced winners for 2012.
The Iron Curtain symbolized the ideological conflict and physical boundary dividing Europe into two separate areas during Cold War. Iron Curtain divided countries in the capitalist West and the socialist countries of East.