PBS NewsHour

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Although online prices are “stickier” than economists might guess, the proliferation of dynamic pricing means online prices might soon start swinging more often. Photo by Johnnie Davis via Getty Images. Online shopping has been...
Carbapenem-resistant Enterobacteriaceae (CRE) bacteria is pictured in this medical illustration provided by the Centre of Disease Control and Prevention (CDC). The UCLA Health System said seven patients were infected with a potentially deadly, drug-...
New York Assembly Speaker Sheldon Silver stops to speak at microphones as he leaves the U.S. Federal Court in the Manhattan borough of New York City January 22, 2015. Silver, 70, one of the state’s most powerful Democrats for more than two...
The caramel coloring used in soda has been linked to a rise in cancer risk. Photo by Flickr user Phera Laster The brown coloring in your soda may be linked to increased cancer risk, according to a new study. A chemical called 4-methylimidazole,...
President Obama says countries should refute that extremists, such as the Islamic State group, represent Islam. Photo by Jonathan Ernst/Reuters WASHINGTON — In the fight against violent extremism, President Barack Obama has argued the U.S. has one...
DNA is a long code of instructions to build every tissue in our body. But there are little markers along the way that tell cells how to read the DNA. And those markers turn genes on and off, which could affect disease or even your personal...