BBC: At least four people have been killed in a mass shooting at the Washington Navy Yard.
CNN: U.S. measles cases in 2013 are at their highest level in 17 years, partly due to people refusing to vaccinate their children.
CNN: Help has arrived for Lyons, the small town cut off by flooding in Colorado.
Reuters: The notion that anyone with smarts, drive and a great idea can raise money and start a company is a central tenet of the Valley's ethos.
BBC: Syria's President Bashar al-Assad has appeared on Russian TV to confirm that his country's chemical weapons will be placed under international control.
Reuters: By adding a fingerprint scanner to its newest mobile phone, Apple Inc is offering a tantalizing glimpse of a future where your favorite gadget might become a biometric pass.
SFGate: Five years after Lehman Bros.' collapse, wealthier Americans have enjoyed the lion's share of economic recovery, while the poor and middle class continue to struggle.
Modern Farmer: NASA will begin producing its own food in orbit for the first time ever later this year.
Reuters: A reading of the names of the nearly 3,000 people killed when hijacked jetliners crashed into the World Trade Center, the Pentagon and a Pennsylvania field marked the 12th anniversary of the September 11 attacks in 2001.
BBC: During March/April - the time of year when marine floes are at their thickest - the radar spacecraft recorded just under 15,000 cu km of ice.
CNN: When Americans start shopping on the state-based exchanges next month, a couple of big insurers will not be present.
AP: The pay gap between the richest 1 percent and the rest of America widened to a record last year.
Reuters: Google and other big Internet players are asking courts to allow public discussion of their mandated cooperation with the U.S. spy agencies.