The U.S. and Iraq said Thursday they will begin discussions on the future of American and other foreign troops in the country. Washington has forces in Iraq as part of the international coalition against the Islamic State jihadist group, but the country's prime minister has called for the coalition to leave. The talks come at a time of tensions in Iraq and the region linked to the war between Israel and Hamas, which has sparked a surge in attacks on American and other coalition forces.

SEE WHAT IRAQ IS SAYING ABOUT US TROOPS IN COUNTRY

Meta on Thursday began blocking messages from strangers sent directly to young teens using Instagram or Messenger. By default, teens younger than 16 years old can now only be messaged or added to group chats by people they follow. Changing the setting will require approval through "parental supervision tools" built into the apps, Meta said, adding that it is working on a way to prevent teens from seeing unwanted or potentially inappropriate images in all direct messages.

OTHER SECURITY MEASURES BEING IMPLEMENTED BY META

Visitors to Peru's iconic Machu Picchu site had their trip interrupted Thursday by protesters angry with the government for privatizing ticket sales at the Inca citadel. Tour operators and residents closed shops in protest and blocked the tracks of a tourist train, compelling those on board to walk the remaining 3 kilometers (1.8 miles) to the entrance.

WHY PERUVIANS ARE ANGRY ABOUT MACHU PICCHU TRAIN

What is the ancient Quechua Indian translation for "Machu Picchu"?

Thursday's answer: Disney's 1994 animated classic "The Lion King" is the highest-grossing movie ($968 million) without an Oscar nomination.