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The Justice Department announced Thursday that together with the FBI and international law enforcement agencies, officials had shut down "the largest darknet marketplace in history." AlphaBay, a Web bazaar where users' identities were cloaked and illicit goods and drugs were sold, has officially been seized and shut down.

A plan to build an ultrafast Hyperloop One tube train has been given "verbal [government] approval to connect large cities on the East Coast, tech entrepreneur Elon Musk says. He adds that the system would whisk passengers from New York to Washington, D.C., in 29 minutes.

Washington, D.C., police say that six teenagers from Burundi who competed in an international robotics competition have been reported missing.

Two of the teens — 16-year-old Don Ingabire and 17-year-old Audrey Mwamikazi — were last seen leaving the U.S. into Canada, the Metropolitan Police Department tells The Two-Way, adding that there is "no indication of foul play."

Doctors use words like "aggressive" and "highly malignant" to describe the type of brain cancer discovered in Arizona Sen. John McCain.

The cancer is a glioblastoma, the Mayo Clinic said in a statement Wednesday. It was diagnosed after doctors surgically removed a blood clot from above McCain's left eye.

Doctors who were not involved in his care say the procedure likely removed much of the tumor as well.

A small, humble-looking bag is getting its moment in the spotlight today. It traveled to the moon and back, then sat forgotten in a museum basement. It was seized by officials who didn't know its value, sold unceremoniously to a keen-eyed space enthusiast, then battled over in court.

Now the lunar collection bag from the Apollo 11 mission — and the tiny bits of moon dust embedded within it — are hitting the Sotheby's auction block.

Nancy Carlson purchased the bag for less than $1,000. Sotheby's expects it to sell at auction on Thursday for $2 million to $4 million.

India announced the election of its new president Thursday — but before Prime Minister Narendra Modi's BJP party nominated him last month to be head of state, few saw Ram Nath Kovind coming.

Kovind secured 65 percent of the votes from an electoral college drawn from more than 4,000 members of 31 legislative assemblies across the country and 776 members of Parliament. He will take office as India's14th president next week.

Updated 12:15 p.m. ET

The United States has ended the ban on large electronics in the cabins of airlines that it announced in March.

It has been just a month since the death of Otto Warmbier — an American tourist jailed by North Korean authorities, sentenced to 15 years' hard labor for pulling down a propaganda poster, and eventually released to the U.S. in a coma under mysterious circumstances.

A 50-cent meningitis vaccine. Kid-friendly malaria drugs. A vaccine to prevent a deadly diarrheal disease.

These U.S.-funded global health innovations have saved millions of lives around the world. But they also come with an added bonus for Americans.

Updated at 11:45 a.m. ET

Attorney General Jeff Sessions says he will stay at his post for "as long as that is appropriate." That follows comments by President Trump, who said he wouldn't have appointed Sessions had he known Sessions would recuse himself from the investigation into possible collusion between the Trump campaign and Russia.

In a fitness-crazed land of spin classes and CrossFit gyms, Octavia Zahrt found it can be tough to feel as though you're doing enough. "When I was in school in London, I felt really good about my activity. Then I moved to Stanford, and everyone around me seems to be so active and going to the gym every day," she says. "In the San Francisco Bay Area, it's like 75 percent of people walk around here wearing exercise clothes all day, every day, all the time, and just looking really fit."

Updated at 12:24 p.m. ET

Beltway denizens heading to work on Thursday were forced to contemplate something inevitable but which no one expected anytime soon: the possibility of a Washington without Sen. John McCain.

McCain, the irascible old living legend. McCain, the Vietnam War hero. McCain, the globe-trotting State Department of one. McCain, the outspoken hawk who championed American troops — and Pentagon spending — and also pilloried the defense contractors he felt let them all down.

A Baltimore man was held in jail for months after police found a stash of drugs — but the officer who found the drugs also seems to be the one who hid them in that spot, according to footage from his body camera. The public defender's office says the man is now free and it is questioning the officer's involvement in 53 active cases.

The officer has been suspended and two of his colleagues are on administrative duty, Baltimore Police Commissioner Kevin Davis said, as the agency's internal affairs unit looks at the case.

At a lunch on Wednesday, President Trump tried to persuade some reluctant senators to endorse repealing the Affordable Care Act.

Do you deserve your pets? Do you deserve your people? Nicole Georges suggests in her new graphic novel that the two questions are intimately related, and she leaves little doubt it's the first one that really matters. If you're a true pet person, you've known the agony of encountering someone who – whether ignorant, emotionally unavailable or just plain flaky – should not be in charge of animals: The dog walker who leaves his companion to wait in the cold while he plays scratchoffs in a liquor store; the kitten adopter who talks blithely of declawing.

When Bao Phi's family fled Vietnam in 1975 and settled in Minneapolis with other refugees, he was just a few months old. He was too young to understand the scene at the airport that day: Communist soldiers were firing rockets at planes filled with people trying to escape, incinerating them in the sky. Phi's parent's told him about their family history bit by bit, and he began to form a stronger sense of his own identity.

Lee Schreiner of Rockford doesn’t play the piano or sing. He’s a physics teacher with multiple degrees from Northern Illinois University. But his hobby of collecting wartime sheet music has grown over the years.

“I thought maybe I could collect like a hundred sheets," he admits. "Then it was a thousand. Then it was five thousand. It’s amazing and almost unexplored territory because people had not done a lot of research on World War I. I'm trying to understand the history through the music.”

Education Secretary Betsy DeVos is speaking to the annual meeting of the American Legislative Exchange Council, or ALEC, on Thursday in Denver, but protests from left-wing activists and teacher groups started Wednesday.

Hundreds marched from the state Capitol in Denver to the Hyatt Regency, the site of the speech, with signs reading: "Dump Betsy DeVos," "Take Devouchers Elsewhere" and "Stop School Privatization!"

In England, there's something known as the "Dunkirk spirit," shorthand for coming together in times of adversity. It refers to the heroic evacuation of British troops by British civilians in small boats at the beginning of World War II — and it's a story director Christopher Nolan has wanted to tell for a long time.

O.J. Simpson will find out on Thursday if he soon will be released from the Lovelock Correctional Center in Nevada. He has been held there for nearly nine years for convictions on armed robbery and other charges.

The former NFL hero, TV pitchman and movie star, now 70, stands a good chance of being granted parole when he appears before the Nevada Parole Board via video link. No one has registered to testify against him. He will likely try to persuade the board of his good behavior behind bars.

If paroled, Simpson would be released from prison no sooner than Oct. 1.