AP - Former Vice President Al Gore and the U.N.'s Intergovernmental Panel on Climate Change jointly won the 2007 Nobel Peace Prize Friday for their efforts to spread awareness of man-made climate change and to lay the foundations for fighting it.

AP - In a tense start to talks on a range of thorny issues, President Vladimir Putin on Friday warned U.S. officials to back off a plan to install missile defenses in eastern Europe or risk harming relations with Moscow.

AP - School officials were trying to determine how a suspended student who shot four before killing himself was able to enter his school while carrying two guns — all while 26 security cameras were keeping watch.