Volcanos played an important role in the formation of Arizona. While many people are familiar with active above surface volcanos, Arizona has many below surface active volcanos. KJZZ's Mark Brodie talked to an ASU volcanologist about the significance of the volcanic presence in Arizona.
Obama seeks stronger Europe ties Barack Obama tells Berliners the US and Europe have drifted apart and it is time for them to come together again.
France reveals defence closures Dozens of French military units are closing as part of a major shake-up in defence strategy, the PM announces.
Hunt begins for Karadzic helpers Officials investigating Bosnian Serb ex-leader Radovan Karadzic vow to track down those who aided his false identity.
Serbia to reinstate EU diplomats Serbia says it will reinstate ambassadors withdrawn from EU states that supported Kosovo's independence.
EU publishes airlines blacklist The European Union issues its list of airlines who cannot travel within the EU because of fears over their safety record.
Woman sees family die on mountain A woman watches her husband and three children fall to their deaths while climbing near Europe's highest peak.
Libya 'halts Swiss oil shipments' Libya's state shipping company says it has halted oil shipments to Switzerland in protest over the arrest of Muammar Gaddafi's son.
Boss of BP Russia venture leaves BP says the chief executive of its Russian venture TNK-BP has temporarily left Russia because of "sustained harassment".
Concern over French nuclear leaks A nuclear watchdog in France expresses its concern after a series of recent incidents at nuclear power plants.
Motorsport chief wins orgy court case World motorsport boss Max Mosley has won his legal action against a newspaper over reports of a Nazi-style orgy.
Stage 18 as it happened Carlos Sastre retains the Tour de France's yellow jersey after stage 18 from Bourg-d'Oisans to Saint Etienne.
Defeat threatens Federer ranking Roger Federer's long reign as world number one is looking perilous after he crashes out of the Toronto Masters in his first match since Wimbledon.
Prize defendant Karadzic trial will be chance to get over Milosevic debacle
Obama tour The BBC follows the Democratic hopeful on way to Europe
Mardell's Europe Spotlight on The Hague after the capture of Karadzic
Moscow Diary Russia's confusing relationship with its history
Surge of emotion Serbs and Bosnians describe feelings on Karadzic capture
Greece accused of refugee neglect The Greek government stands accused of neglecting 140 war refugees who have been evicted from their reception centre on Patmos.
Britain-Ireland border check plan The UK and Irish governments propose the first formal border checks between the two nations in 80 years.