Risks are mainly external with policy uncertainty in the developed world.
Company priced shares at $20 apiece above the previously indicated $17 to $19 per share range.
Walker launched an expletive-laden tirade aimed at rivals Aldi, Lidl and Asda.
Russian Foreign Minister Sergei Lavrov says Tehran and world powers agree on key aspects of preliminary accord.
With hospitals overwhelmed by the injured, crippled medical supplies are adding to concerns.
'Bone flutes' were not used as Neanderthals as world's earliest musical instruments.
Weeks before Germanwings French Alps crash, Dutch pilot warned of risks of being locked outside the cockpit.
Two cross-dressing men were injured and one later died after police opened fire on their stolen vehicle outs the US National Security Agency.
Stephan Woytack, 74, from Scranton, Penn., was helping his wife decorate her mum's grave
Geographic tongue affects 2% of population with exact cause of problem unknown.
Signs to identify terrorists includes 'exaggerated yawning, face pale from recent shaving of beard.'
"Irrefutable evidence" that songbird has longest nonstop overwater flights recorded.
Tottenham winger's impressive second-half strike enough for England to secure a 1-1 draw in Turin.
Video reportedly shows victims screaming before apparently cutting out at point of impact
Hospital officials say Mehmet Selim Kiraz, the prosecutor held hostage in Istanbul has died.