President John F. Kennedy was killed in Dealey Plaza while traveling through Dallas on Nov. 22, 1963. Here’s what happened, and how the events that day changed everything about how the Secret Service protects the president.
In 2008, Washington Nationals owner Mark Lerner wrote to Ted Leonsis, his counterpart with the Washington Capitals, that they needed to bring the Winter Classic to the nation’s capital. And seven years later, it will become a reality when the Capitals take on the visiting Chicago Blackhawks at Nationals Park on New Year’s Day.
Former National Security Agency contractor Edward Snowden obtained and shared with The Washington Post a large volume of e-mails, messages, photos and documents intercepted by the NSA from online accounts and network links in the United States. In this cache of communications, the NSA’s foreign targets were far outnumbered by ordinary Web users whose content was intercepted “incidentally,” as a collateral effect of the surveillance.
This summer, D.C. Water will begin using something it has a lot of (yes, poop, although folks there call it “biosolids”) to generate something it needs: electricity. Key to the $470 million system is a unique process, the first of its kind in North America, created by Norwegian company Cambi. The process is called “thermal hydrolysis,” and the basic idea is to cook the biosolids into a recipe that methane-making microbes can’t resist, then burn the methane they produce to generate power. Here’s how the system will work.