Republican senators pressed FBI Director James Comey on Tuesday about whether anything more could have been done to prevent recent acts of extremist violence, including the Orlando nightclub massacre and the Manhattan bombing this month.
Comey said the FBI is fallible and transparent about its mistakes, but he did not concede that anything should have been done differently or that any red flags were missed.
The questions arose because the FBI has said it investigated Orlando gunman Omar Mateen a few years before the June shooting and interviewed him multiple times. The FBI in 2014 also looked into Ahmad Khan Rahami, the Afghan-born U.S. citizen accused in the explosion, but found nothing that tied him to terrorism.
Investigators searched the Vermont home of a man who was rescued after more than a week lost at sea, removing on Tuesday an internet modem, a SIM card and a letter he wrote.
Nathan Carman, 22, of Vernon, Vermont, and his mother, 54-year-old Linda Carman of Middletown, Connecticut, set sail on a fishing boat on the weekend of Sept. 17. The boat sank, and Nathan Carman, authorities say, got onto a four-person inflatable raft, loading it up with food and water.
He was found alive by a Chinese freighter Sunday, about 100 nautical miles south of Martha's Vineyard. His mother, however, is still missing and presumed dead.
Taliban leaders were watching last night's debate between Democratic presidential candidate Hillary Clinton and Republican presidential candidate Donald Trump from a secret location in Afghanistan, according to NBC News.
A spokesman for the group, Zabihullah Mujahid, told NBC that they were "very interested in watching," and they had hoped Afghanistan would have been a more prominent part of the debate.
He said that Trump is "non-serious," and said the candidate "[says] anything that comes to his tongue."
"There nothing of interest to us in the debate as both of them said little about Afghanistan and their future plans for the country," Mujahid added.
Get More at NBC News
Elkhart Police Department
Two children who were the subjects of an Indiana statewide Amber Alert Monday afternoon were found dead later that night, Elkhart police said.
Amber Pasztor, 29, of Fort Wayne, was arrested on suspicion of two counts of murder and is being held in Elkhart County Jail.
About 5:25 p.m. an officer walking out of the Elkhart Police Department on Marion Street, was stopped by Pasztor, the children's non-custodial mother, who was driving a vehicle matching the description of the one described in the Amber Alert, police said.
Spencer Mulligan knew his family could pay for his college education, even without loans or grants. So when the University of Connecticut offered a merit award of $20,000 over four years, he saw it as a bonus.
As a discount on in-state tuition, it brought the cost well below half of what his family might have paid at his other top choices, Penn State or the University of Vermont.
For children in war-torn Syria, Rami Adham is a welcome visitor. Since the beginning of the civil war, the Syrian native who lives in Finland has risked his life traveling to Syria more than two dozen times to deliver toys to children.
"I was very saddened by what was going on," Adham told NBC News. "As a Syrian, I wanted of course to do my part in helping people ... so I decided to go there myself."
According to Adham, his three-year-old daughter gave him toys before his first trip back to his homeland. From there, his charity, the Finland Syria Community Association, grew. It collects toys, sponsors orphans, and even builds schools for Syrian children.
Even with the growth of the charity, though, Adham still carries the toys himself.
Get More at NBC News
Donald Trump told reporters after last night's debate that he held back from talking about former President Bill Clinton's private indiscretions because the former president's daughter Chelsea Clinton was present, NBC News reported.
"I'm very glad that I didn't mention, because Chelsea was in the room, indiscretions by, I didn't think would be appropriate to do even though she's taken all these ads. I thought we did very well," Trump said.
Trump's daughter Ivanka is friends with Chelsea Clinton.
Trump's running mate Mike Pence said on the "Today" show Tuesday morning that the Republican presidential candidate showed great restraint during the debate after an "avalanche of insults" from Clinton.
Get More at NBC News
Does Donald Trump have a cold? He began Monday night's debate at Hofstra University occasionally sniffling, which appeared to distract many people following along on social media.
It wasn't clear if Trump had a cold, and Trump's sniffles only made occasional reappearances. When Hillary Clinton had pneumonia about two weeks ago, it became a major question mark over her own campaign.
Two home-made bombs hit a mosque and a conference center in eastern Germany late Monday in what officials called a "xenophobic" attack, NBC News reported.
No one was injured by the blasts in Dresden, birthplace in 2014 of the anti-Islam PEGIDA movement, whose name is an acronym for Patriotic Europeans Against the Islamisation of the West.
The city's police chief said officials were "now in crisis mode."
"Even though there has been no claim of responsibility, we have to assume that there is a xenophobic motive," Dresden police chief Horst Kretzschmar said in a statement.
A recent government report warned that xenophobia was rising in ex-communist eastern Germany.
Get More at NBC News
No one on the Miami Marlins will ever wear Jose Fernandez’s No. 16 again, owner Jeffrey Loria announced Monday, a day after the star pitcher was killed in a boating accident.
Marlins players will honor Fernandez Monday by each wearing his jersey number during their game against the Mets, in which he had been scheduled to start.
Fernandez and two others were found dead on Sunday morning when the boat they were on, which authorities have said appeared to be traveling very fast, crashed on a jetty off Miami Beach.
In a combative opening debate, Hillary Clinton emphatically denounced Donald Trump Monday night for keeping his personal tax returns and business dealings secret from voters and peddling a "racist lie" about President Barack Obama. Businessman Trump repeatedly cast Clinton as a "typical politician" as he sought to capitalize on Americans' frustration with Washington.
Bloomberg via Getty Images, File
Are Americans safer? It depends on where you live.
A report issued Monday by the FBI says the number of murders rose by more than 10 percent in 2015 from the previous year, while violent crime overall was up nearly 4 percent. Experts say the increase is driven by a spike in violent crime in at least several large cities, but they caution that the country is in the midst of such low crime rates that even the tiniest increase appears larger than it is.
NBC 4 New York
The American Civil Liberties Union on Monday began representing a man accused of setting off bombs in New York and New Jersey and injuring more than 30 people.
After judges in both states denied attempts by public defenders to represent Ahmed Khan Rahami, a lawyer for the organization's New Jersey chapter entered a notice of appearance in his case in federal court in Newark on Monday.
Rahami has been hospitalized since he was caught following a shootout with police in Linden last week. He has not made an initial court appearance.
The presidential nominees sparred for 99 minutes in their first presidential debate held at Hofstra University Monday night.
Donald Trump and Hillary Clinton tackled the economy, ISIS, taxes and the president's birth status. They also took jabs at one another, and plenty of them.
Getty Images file
The U.S. Department of Labor has filed a lawsuit accusing a high-flying Silicon Valley software company of systematically discriminating against Asian job applicants over the last five years.
Palantir Technologies was co-founded by prominent tech financier Peter Thiel, with backing from an investment arm of the CIA. The Palo Alto, California, company makes data analytics software used by the U.S. military and law enforcement agencies, along with banks, insurance companies and other private clients.