Wal-Mart cuts forecast as it spends more on healthcare, online
The Walmart logo is pictured at its store in the Porter Ranch section of Los Angeles November 26, 2013. REUTERS/Kevork Djansezian
The Wal-Mart logo is pictured on cash registers at a new store in Chicago, January 24, 2012. REUTERS/John Gress
The jet carrying Brazilian presidential candidate Eduardo Campos, who was polling in third place, crashes in Santos.
Heavy rain triggers flash floods in New York's suburbs and swamps cars during rush hour.
A Russian convoy approaches eastern Ukraine.
Dramatic images of electrical storms.