Jeff Brady is a National Desk Correspondent based in Philadelphia, where he covers energy issues and climate change. Brady helped establish NPR's environment and energy collaborative which brings together NPR and Member station reporters from across the country to cover the big stories involving the natural world.
About 40 people are dead and more than 100 are injured after a fire ripped through a New Year's Eve party at a Swiss ski resort bar. Authorities are still investigating what caused the blaze.
Ukrainians recall their country giving up nuclear weapons in 1994 in exchange for international security promises that weren't kept. They don't want a repeat in their current negotiations with Russia.