CNN.com: Banned from aircraft after 9/11, pocket knives will once again be allowed in U.S. planes, according to the Transportation Security Administration.
BBC: The Chinese-owned company is released a cyclist detectiontechnology designed to prevent fatal accidents.
The Guardian: Martha Stewart is in court to defend her company in a fight between Macy's and JC Penney.
CBSnews.com: The TSA plans to freeze hiring and cut overtime, nearly doubling wait times at major airports during peak travel times, including spring break and summer.
Reuters: The Dow Jones Industrial Average surged to a new record on Tuesday, breaking through levels last seen in 2007 as investors extended 2013's rally. However, after adjusting for inflation, it was higher in 2000 and 2007 than today.
CNN: There are 1,436 billionaires around the world, including 210 new this year.
BBC: The company's space of the future portrays what the firm thinks life might be like five to 10 years in the future.
Reuters: Four months after his bitter election defeat, a reflective Mitt Romney said it "kills" him not to be president.
CNN: Groupon fired Andrew Mason as chief executive officer.
CBSnews.com: Today, when President Obama signs the order, the so-called sequester will take effect, and $85 billion in automatic 2013 spending cuts will begin rolling in.
Reuters.com: Scientists are teaming up with technology gurus from Amazon, Facebook and Google to design and develop a mobile game aimed at speeding the search for new cancer drugs.
CNET: San Francisco-based startup Koozoo wants cameras to record your every move in public to anticipate your needs.
Reuters.com: The thoughts of a rat romping around a lab in Brazil were captured by electronic sensors and sent via Internet to the brain of a rat in the United States.