Donald Trump invoked the possibility of a violent assault on Hillary Clinton once again on Saturday, a day after he suggested that her Secret Service bodyguards disarm and "let's see what happens." In a post Saturday morning on Twitter, Trump falsely accused Clinton of trying to take away Americans' 2nd Amendment rights, just as he did Friday night at a Miami rally where he said her Secret Service agents should "drop all weapons." "Will guns be taken from her heavily armed Secret Service detail? Trump said Friday night that Clinton's Secret Service detail should disarm because she supports gun control. "What do you think, yes?" he asked the crowd. Let's see what happens to her. Take their guns away, OK? It would be very dangerous."

Russia and Syria on Saturday accused U.S.-led forces of launching an airstrike that killed 62 Syrian soldiers and wounded more than 100 at an air base in eastern Syria. U.S. Central Command, which oversees military operations in the Middle East, said in a statement that American warplanes carried out a strike south of Dair Alzour but it could not confirm that they hit Syrian forces. "Coalition forces believed they were striking a Daesh fighting position that they had been tracking for a significant amount of time before the strike," the statement said, using an Arabic acronym for Islamic State. "The coalition airstrike was halted immediately when coalition officials were informed by Russian officials that it was possible the personnel and vehicles targeted were part of the Syrian military." There have been fears that the U.S. military could accidentally strike Syrian or Russian forces since the air campaign against Islamic State began more than two years ago.

That is the request by Department of Homeland Security Secretary Jeh Johnson, who credited major staffing changes at the Transportation Security Administration for avoiding gridlock and long lines at airport security checkpoints this summer. Because of a shortage of TSA screeners, lawmakers and airlines had predicted long waits, headaches and confusion at the nation's airports during the peak summer travel season. Bayer buying Monsanto, Uber's self-driving cars, Cup of noodles is changing its recipe, new battle over child vaccination, an Emmys preview, the new Chevy Bolt, Ryan Lochte's "Dancing with the Stars" premiere gets overshadowed by protesters. Bayer buying Monsanto, Uber's self-driving cars, Cup of noodles is changing its recipe, new battle over child vaccination, an Emmys preview, the new Chevy Bolt, Ryan Lochte's "Dancing with the Stars" premiere gets overshadowed by protesters.

The Los Angeles City Council moved one step closer toward designating the Bob and Dolores Hope estate a cultural landmark Friday, adding another chapter to the saga of the property's potential sale. Councilman David Ryu saw the pending demolition of outbuildings at the Toluca Lake property and called for emergency legislation. The council voted 12 to 0 to halt any demolition while the city considers whether to deem the estate a historic-cultural monument. A 2013 study by the Los Angeles Historic Resources Survey listed the 5.16-acre estate as potentially historic because of its ties to the entertainment industry. It was built in 1939.

Israeli forces shot and killed a Palestinian who stabbed a soldier in the West Bank, the military said Saturday, a day after Palestinians carried out several assaults. The weekend assaults were the latest violence in a year of Palestinian attacks that at times have been near-daily occurrences but have recently been on the decline. On Saturday, the military said a Palestinian pulled out a knife during a security check in the West Bank city of Hebron and stabbed a soldier, prompting forces to open fire and kill the attacker. The incident came a day after what Israeli authorities said were several Palestinian attacks on Israeli civilians, police and a soldier. In the first Friday attack, a man came out of Jerusalem's walled Old City brandishing a knife in each hand, police said.

Abu Sayyaf extremists on Saturday freed a Norwegian man kidnapped a year ago in the southern Philippines with two Canadians who were later beheaded and a Filipino woman who has been released by the ransom-seeking militants, officials said. Kjartan Sekkingstad was freed in Patikul town in Sulu province and was eventually secured by rebels from the larger Moro National Liberation Front, which has signed a peace deal with the government and helped negotiate his release, Philippine government officials said. Sekkingstad, held in jungle captivity since being kidnapped last September, was to stay overnight at the house of Moro National Liberation Front chairman Nur Misuari in Sulu and then be flown to the southern city of Davao on Sunday to meet with Philippine President Rodrigo Duterte, said Jesus Dureza, who advises Duterte on peace talks with insurgent groups. A plan to fly the freed hostage out of Sulu, a jungle-clad Muslim region about 590 miles south of Manila, on Saturday was scrapped because of bad weather, Dureza said. Dureza said that when he spoke on the phone with Sekkingstad, the Norwegian expressed his gratitude to Duterte.

A Southern California police officer gave a man less than a second to raise his hands before opening fire and killing him, a federal appeals court noted Friday in rejecting the officer's request to dismiss a wrongful death lawsuit against him. The U.S. 9th Circuit Court of Appeals in San Francisco said Tustin Police Officer Osvaldo Villarreal couldn't reasonably have feared for his safety when he shot 31-year-old Benny Herrera after responding to a domestic dispute call in December 2011. That determination ran counter to the Orange County district attorney's office, which said in 2013 that the shooting was reasonable and justified because Villarreal fired after Herrera ignored orders to show his hands. A video captured by a police dashboard camera shows otherwise, according to the 9th Circuit judges who cited the footage. "Less than a second elapsed between Villarreal commanding Herrera to take his hand from his pocket and Villarreal shooting him," the court wrote.

Today on In Case You Missed It: The US Marine Corps announced its latest Innovation Challenge for robots that can handle dull, dirty or dangerous work autonomously, leaving humans free for more important tasks. Meanwhile the University of Pennsylvania has a researcher flying a quadcopter through 45-degree angle window openings at top speeds, with few extra onboard sensors. The algorithm behind it is neat, even if the potential applications make us uncomfortable. You may already know why we should be covering up our computer webcams, but here's more ammo if that's needed. As always, please share any interesting tech or science videos you find by using the #ICYMI hashtag on Twitter for @mskerryd.

At a theoretical level, the concept of artificial intelligence has fueled and sharpened the philosophical debates on the nature of the mind, intelligence, and the uniqueness of human beings. Insights from the field have proved invaluable to biologists, psychologists, and linguists in helping to understand the processes of memory, learning, and language. Today, we're continuing our Q&A with Maggie Boden, Research Professor of Cognitive Science at the University of Sussex, and one of the best known figures in the field of Artificial Intelligence. ANNs are computer systems made of large number of interconnected units, each of which can compute only one (very simple) thing. They are (very broadly) inspired by the structure of brains.

When a debt is older than the statute of limitations, it's called time-barred debt. That means creditors don't have a legal right to sue you -- though debt collectors may still try. They also can continue to pursue you with phone calls and negative credit reporting. Proceed carefully, because debt collection has many pitfalls. There's a chance that you never took out this debt, that the collector is seeking the wrong amount or that you already paid and the collection is in error.