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  • At DarwinTunes.com, listeners can rate collections of notes according to their musicality. The nice sounds survive, and other users listen to them. The ugly sounds die "natural selection." Guest host David Greene talks to Bob MacCallum of Imperial College London about his website.
  • Electronics Arts built a gaming empire with a strategy straight out of Hollywood — big names and big budgets. But the market has changed to favor data-driven online games, and the Redwood City, Calif., company finds itself forced to change too.
  • Apple's new smartphone, the iPhone 4S, lands in stores Friday, armed with a voice assistant and a new camera. One of the new iPhone's biggest rivals will be the Motorola Bionic, which runs on Google's Android operating system. Both phones are very capable, and very fast, says Rich Jaroslovsky.
  • The law that governs the privacy of cloud computing was written 25 years ago, when the concept of storing emails and other data away from the personal computer wasn't the norm. Some big-name tech companies are asking Congress to step in and clarify Americans' online privacy rights.
  • More than 1,000 documents were reportedly seized from the headquarters of Juul Labs in a surprise inspection on the manufacturer.
  • After a rocky start, the HealthCare.gov website is supposed to be able to handle 50,000 simultaneous users by the end of the month. That figure would represent about double the site's current capacity. An expected surge in demand will present a new test.
  • Although Boston's police chief says his department didn't know the FBI had investigated Tamerlan Tsarnaev's possible ties to extremists, the bureau says that information was entered into a database that local authorities could access.
  • For the last 15 years, a group of hobbyists has been tracking the movement of currency across the country. Self-named "Georgers" — after the president on the $1 bill — log the date, location and condition of bills they've encountered, and even spread the money by traveling across the country.
  • Facebook is beginning to enforce a ban on white nationalist content this week. The move comes as Australia, Germany and other countries pass tough laws to curb hate speech.
  • Google, Yahoo and other major Internet companies use OpenSSL to protect your data transactions with them. Turns out a bug called Heartbleed has been exposing much of their data, and yours.
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