New British Prime Minister Theresa May announced six members of her Cabinet Wednesday.

Amid a sweeping crackdown on dissent in Egypt, security forces have forcibly disappeared hundreds of people since the beginning of 2015, according to a new report from Amnesty International.

It's an "unprecedented spike," the group says, with an average of three or four people disappeared every day.

The Republican Party, as it prepares for its convention next week has checked off item No. 1 on its housekeeping list — drafting a party platform. The document reflects the conservative views of its authors, many of whom are party activists. So don't look for any concessions to changing views among the broader public on key social issues.

Many public figures who took to Twitter and Facebook following the murder of five police officers in Dallas have faced public blowback and, in some cases, found their employers less than forgiving about inflammatory and sometimes hateful online comments.

As Venezuela unravels — with shortages of food and medicine, as well as runaway inflation — President Nicolas Maduro is increasingly unpopular. But he's still holding onto power.

"The truth in Venezuela is there is real hunger. We are hungry," says a man who has invited me into his house in the northwestern city of Maracaibo, but doesn't want his name used for fear of reprisals by the government.

The wiry man paces angrily as he speaks. It wasn't always this way, he says, showing how loose his pants are now.

Ask a typical teenage girl about the latest slang and girl crushes and you might get answers like "spilling the tea" and Taylor Swift. But at the Girl Up Leadership Summit in Washington, D.C., the answers were "intersectional feminism" — the idea that there's no one-size-fits-all definition of feminism — and U.N. climate chief Christiana Figueres.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

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U.S. 'Space Fence' Radar System Goes Silent, After 50 Years

Sep 3, 2013
Originally published on September 3, 2013 12:51 pm

The Space Fence is down. That's the message we get from the SatWatch site, following up on our report last month that the U.S. Air Force was poised to shut down the radar system that tracks thousands of objects orbiting Earth. It had been in operation since 1961.

The Space Fence — also known by its formal name, the Air Force Space Surveillance System — consists of three transmitters and six receivers that stretch across the southern U.S., using radio waves to paint a picture of a slice of space. The items it detected ranged from satellites and debris to meteors.

"The final satellite I captured an RF reflection from was the Meteor Priroda," says Mike Coletta of SatWatch, "which went over the transmitter site at approx 0000 hrs UTC [on Sept. 1], and there have been no more reflections since that time."

Shutting down the system will save around $14 million annually, the Air Force Space Command said last month. The agency hopes to install a new version of the fence using technology that it says will be more accurate.

News of a pending shutdown came last month after an Air Force memo came to light. That led to criticism from experts who say the fence should not be shut down before a new system is in place.

Under current projections, a new U.S. space fence system is expected to be operational in 2017. According to military contractor Lockheed Martin, the new system will be built in the Marshall Islands at an estimated price of $1.9 billion over seven years.

Writing for The Space Review site, Brian Weeden of the Secure World Foundation says that shutting down the Space Fence is "a high-stakes gamble by AFSPC to bolster the long-term survivability of the new S-Band Space Fence it wants to acquire."

The system's shutdown has also disappointed hobbyists who for years tuned in to the fence's frequency, around 216.98 MHz, to hear the pings and beeps created when orbiting objects reflect VHF radio signals back to Earth. According to the most recent report we could find from NASA, more than 21,000 objects larger than 10 centimeters are in orbit.

Because the Space Fence operated continuously, it collected reams of data about the objects that swarm around the Earth.

"The U.S. military also uses the data to offer a close approach warning service for owner-operators of the more than 1,000 active satellites in orbit," Weeden writes. "In 2012, satellite operators conducted 75 maneuvers to avoid potential collisions as a result of those warnings."

Copyright 2013 NPR. To see more, visit http://www.npr.org/.