From the Wires

Turkey officials lift 'Twitter ban'

BBC: Turkish authorities have lifted the two-week-old ban on Twitter, citing it was a breach of freedom and expression.

Supreme Court voids overall campaign donor caps

WSJ: In a 5-4 ruling, the majority believes limits violate the First Amendment.

Amazon launches $99 set-top box

Forbes: The company unveiled FireTV, a streaming set-top box that lets viewers watch on-demand movies and television shows.

7 servings of fruits, veggies reduces death risk

Forbes: Overwhelming evidence shows that consuming seven servings of fruits and vegetables per day considerably decreases one's death risk.

No sign of Russian troop pullout

BBC: Nato is not seeing a Russian troop pullout from the Ukraine border.

Microsoft CEO reshuffles senior ranks

Reuters: Satya Nadella named three executives to its cloud, devices and Xbox gaming systems.

Last day to enroll in Obamacare

BBC: More than six million Americans have signed up for plans through the Affordable Care Act's insurance marketplaces.

Microsoft brings Office to the iPad

Forbes: The apps are free but users will need a subscription to Microsoft's Office 365 service to use them.

CDC: Autism rates in U.S. children increased 30%

CNN: One in 68 children in the United States has an autism spectrum disorder.

IMF agrees to $14 to $18B bailout for Ukraine

Reuters: The International Monetary Fund agreement is intended to help Ukraine meet debt payments.

WHO: World now 80% polio-free

BBC: The World Health Organization has declared its South East Asia region free of the deadly virus.

Facebook bets $2B on virtual-reality headset

Bloomberg: Facebook Inc. made a $2 billion bet after purchasing Oculus VR Inc., saying the headset will become the next focus of its users' social lives.

Study: 1 in 25 patients gets infection in hospital

CNN: In 2011, approximately 721,800 patients acquired infections at hospitals.