Matthew S. Schwartz

Right-wing conspiracy theorist Alex Jones and Nation of Islam leader Louis Farrakhan are running out of places to espouse their views online.

Facebook banned these high-profile personalities and several others from its social media platforms Thursday, becoming the latest tech company to officially declare them persona non grata. Many of them have already been banned from Twitter, YouTube and Apple's Podcasts app.

Until the Trump administration changed its practice last year, the government had quietly separated thousands of children from parents trying to cross into the country at the southern border — in the process, sometimes losing track of where exactly those children went, and to whom they belong.

On Thursday a federal judge gave the administration six months to figure it out.

Updated at 8:54 a.m. ET

Call a dog by its name, and its tail wags, it starts panting happily, and it showers you with love and affection.

Call a cat by its name and ... well, cats are a bit harder to read. Does the cat even know what its name is?

So researchers in Japan set out to answer the question: Can a cat understand the difference between its name and any other random word that sounds like it?

The U.S. Supreme Court on Thursday blocked the execution of a Buddhist inmate on death row because prison officials wouldn't let his spiritual adviser be present in the execution chamber, even though they provide chaplains for inmates of some other faiths.

Updated at 2:52 p.m. ET

President Trump and North Korean leader Kim Jong Un left their summit meeting on Thursday in Hanoi, Vietnam, without agreeing on a denuclearization deal. A planned signing ceremony was canceled.

The biggest sticking point was sanctions against North Korea, Trump said at a news conference Thursday afternoon local time. Kim is "totally" willing to dismantle nuclear weapons in key areas, such as the Yongbyon nuclear facility, but the North Korean leader wants all sanctions removed first, Trump said. "We couldn't do that."

Requiring only men to register for the draft is unconstitutional, a federal judge has ruled.

The Military Selective Service Act states that men in the U.S. ages 18 through 25 must register in case the country needs a military draft. Women face no such requirement. On Friday, a federal judge in Texas ruled that a males-only draft violates the equal protection provisions of the U.S. Constitution.

If Congress votes to disapprove President Trump's declaration of a national emergency, Trump is prepared to veto it, White House senior adviser Stephen Miller said on Sunday.

Eric Gerard McGinnis was not supposed to have a gun. After a violent altercation with his girlfriend, a Texas judge barred him in 2015 from possessing a firearm. A year later, McGinnis tried to buy a gun anyway, but the purchase wouldn't go through after a background check revealed the court order.

The National Butterfly Center, in danger of losing access to most of its wildlife nature preserve along the Rio Grande, is asking a court to stop federal officials from building a border wall across its land.

Updated at 10:30 a.m. ET

An additional 3,750 troops will be sent to the Southern border to help install wire barriers and monitor crossings, officials said. The new deployment will bring the number of active-duty troops there to around 6,000.

In a tweet on Sunday, President Trump said that "STRONG Border Security" is necessary in the face of "Caravans marching through Mexico and toward our Country."

A glitch in Apple's FaceTime app let users hear the other person — and in some cases, see video — even if the recipient never accepted the call. The bug was widely reported late Monday, and confirmed by several technology reporters. Until it can offer a permanent fix, Apple says it has simply disabled group FaceTime calls altogether.

Juan David Ortiz, a U.S. Border Patrol agent, pleaded not guilty Thursday to capital murder in the deaths of four women, The Associated Press reports. His "killing spree" might have continued, prosecutors say, had they not caught a "lucky break" when a fifth kidnapped woman escaped and contacted authorities.

The Houston Sheriff's Office has released a composite sketch of the man wanted in the killing of 7-year-old Jazmine Barnes.

In a press conference Thursday, Harris County Sheriff Ed Gonzales said the suspect is described as a thin white man in his 30s or 40s, wearing a black hoodie, with pale skin and blue eyes. What police originally described as a beard "looks more like a 5-o'clock shadow," he said.

Tim Warner

It is a philosophical question often pondered by sports writers and curious Redditors: If every college mascot were to fight each other, which would stand victorious when the dust cleared?