U.S. officials believe the North is preparing to test fire a medium-range "Musudan" missile.

NPR: A Look At The North Korea Crisis

South Korean officials have also said the North is poised to test-fire a medium-range missile capable of reaching the American territory of Guam.

NPR: North Korea Sets Preconditions For Talks' Restart

Heat a gas grill to medium-high or light a charcoal fire and let it burn just until the coals are covered with gray ash.

NPR: A Meal Fit For A Candidate: Barack Obama

What followed was the biggest fire sale in the history of the sector, as two dozen medium-sized companies at the top of the food chain necked down to six.

FORBES: How The Pentagon's Top Ten Contractors Dealt With The Last Downturn

We'll do advanced video for medium-sized devices with three- to five-inch screens, advanced video for larger devices like the Kindle Fire in a different way, and lower quality video for devices like the Samsung Galaxy S2 that aren't quite so capable of handling high-end video.

BBC: Answers about Android