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A teenager has been given a 16-week prison sentence in a Young Offenders Institution for refusing to give up the encryption key for his computer. Interesting articles that raises questions about police powers, protection against self-incrimination, the right to silence, and the availability of strong encryption.

Mississippi had a problem born of the age of soaring student testing and digital technology. High school students taking the state's end-of-year exams were using cellphones to text one another the answers. Enlarge This Image Drew Angerer/The New York Times John Fremer, 71, a Caveon co-founder who was once the chief test developer for the SAT. CHEAT SHEET A High-Tech Approach Articles in this series examine cheating in education and efforts to stop it. Readers' Comments Readers shared their thoughts on this article. Read All Comments (77) » With more than 100,000 students tested, proctors could not watch everyone - not when some teenagers can text with their phones in their pockets. So the state called in a company that turns technology against the cheats: it analyzes answer sheets by computer and flags those with so many of the same questions wrong or right that the chances of random agreement are astronomically small. Copying is the almost certain explanation.

You may think the only people capable of snooping on your Internet activity are government intelligence agents or possibly a talented teenage hacker holed up in his parents' basement. But some simple software lets just about anyone sitting next to you at your local coffee shop watch you browse the Web and even assume your identity online.

"This past month in the journal Pediatrics, researchers at Mount Sinai Hospital in New York published the results of a study showing that text messaging could significantly improve the rate of adherence among young liver transplant patients. Using a program called CareSpeak, the researchers issued text messages to a group of 41 pediatric liver transplant patients. The text messages reminded the patients to take their medications, which ranged from one to three different pills once or twice a day. "

An older article, but relevant nonetheless.