"Organised criminal gangs operating internationally are suspected of playing a major role in the horsemeat scandal that has seen supermarket shelves cleared of a series of products and triggered concerns about the contamination of the UK's food chain."

"Amid all the progress on this planet -- declining losses from terrible diseases and war, rising literacy and the rest -- there remain plenty of planet-scale risks requiring serious focus, from pandemic flu to centuries of locked-in climate change to, yes, collisions with space rocks."

"President Barack Obama’s annual addresses to Congress offer a glimpse at a leader whose rhetoric on energy and the environment has changed dramatically over the past four years -- from his calls to pass sweeping climate legislation in 2009 to a full-throated embrace of natural gas last year."

"Cancer death rates among African American men declined faster than those of white men in the last decade, even though overall survival rates for black men and women remained the lowest of all racial groups for most types of cancer, according to a recent report."