YouTube's efforts to catch and take down terrorist videos include some far-reaching measures. The New York Times has learned that YouTube recently removed and blocked all videos from Anwar al-Awlaki, a cleric who turned extremist and was killed by an American drone strike in 2011. While it's only his later clips that technically run afoul of YouTube guidelines, the streaming giant determined that all of them ultimately had to go. Supporters of his terrorist cause have reposted his moderate material in a show of support -- getting rid of everything theoretically prevents these adherents from finding something to rally around. The company hasn't publicly confirmed that a cull took place, but it's easy to see the effect.

"U.S. forces will continue to use all authorized and appropriate measures to protect Americans and to disable terrorist threats," said the spokeswoman. The U.S. forces are working with Somalia's security forces and the 22,000-strong African Union force of soldiers from neighboring countries and they are "targeting terrorists, their training camps and safe havens throughout Somalia, the region and around the world," she said.

MOGADISHU, Somalia – U.S. forces say they have carried out three drone strikes within 24 hours in Somalia, stepping up their campaign against the Islamic extremist rebels of al-Shabab and the Islamic State group. The strikes by unmanned drones killed several extremist fighters, a spokeswoman for the U.S. military command in Africa told The Associated Press Sunday. With these three attacks, the U.S. has now carried out 26 attacks in Somalia against extremist targets in 2017, she said. The latest U.S. strikes were carried out in coordination with Somalia's government, she said. The first strike happened Saturday at approximately 4:30 p.m. local Somalia time and it killed one fighter for the extremists group, al-Shabab, said a U.S. Africa command statement.

JERUSALEM – The Israeli military says it has shot down an unmanned aircraft that attempted to infiltrate Israeli airspace from neighboring Syria. In a statement, the military said it intercepted the drone Saturday above the Golan Heights using a Patriot missile. It was not immediately clear if the drone had reached the Israeli-controlled side of the Golan when it was shot down. It also was not known who was operating the drone. In September, Israel also shot down an Iranian-made drone sent by the Lebanese militant group Hezbollah in the same area. Both Iranian and Hezbollah forces have been backing Syrian President Bashar Assad in the Syrian civil war.

In September, Israel also shot down an Iranian-made drone sent by the Lebanese militant group Hezbollah in the same area. Both Iranian and Hezbollah forces have been backing Syrian President Bashar Assad in the Syrian civil war.

The United States military said Saturday it has carried out a new drone strike against the Shabab extremist group in Somalia, killing "several" militants. A statement by the U.S. Africa Command said the strike was carried out Friday night in Lower Shabelle region, about 20 miles north of the capital, Mogadishu. It came a day after another strike in the Bay Region, about 100 miles west of Mogadishu. Friday's airstrike was the 23rd the U.S. military has carried out this year against the Al Qaeda-linked Shabab and the far smaller Islamic State group in Somalia. The Trump administration earlier this year approved expanded military operations against extremists in the Horn of Africa nation. The latest U.S. drone strike was carried out in coordination with Somalia's government, the U.S. statement said.

MOGADISHU, Somalia – The United States military said Saturday it has carried out a new drone strike against the al-Shabab extremist group in Somalia, killing "several" militants. A statement by the U.S. Africa Command said the strike was carried out Friday night in Lower Shabelle region, about 20 miles (32 kilometers) north of the capital, Mogadishu. It came a day after another strike in the Bay Region, about 100 miles west of Mogadishu. Friday's airstrike was the 23rd the U.S. military has carried out this year against the al-Qaida-linked al-Shabab and the far smaller Islamic State group in Somalia. The Trump administration earlier this year approved expanded military operations against extremists in the Horn of Africa nation. The latest U.S. drone strike was carried out in coordination with Somalia's government, the U.S. statement said.

Friday's airstrike was the 23rd the U.S. military has carried out this year against the al-Qaida-linked al-Shabab and the far smaller Islamic State group in Somalia. The Trump administration earlier this year approved expanded military operations against extremists in the Horn of Africa nation.

Amazon has reiterated its commitment to the UK by opening a new so-called Development Centre in the heart of Cambridge – three storeys of premium office space housing 400 employees dedicated to research for products from Amazon's AI-assistant Alexa to the brave new field of Prime Air drone deliveries. The new development joins Amazon's original Castle Park building in Cambridge to house an interdisciplinary team of engineers, scientists and researchers – dubbed Amazon Research Cambridge – dedicated to "pure innovation", according to Amazon's UK boss, Doug Gurr. "The UK has fantastic history of innovation, with hundreds of years at the absolute cutting edge of innovation, and that continues to be true today," said Gurr. "When picking a site for a development centre you have to start with where you find the world's best scientists, engineers and technologists. But it also has to be somewhere that people want to come and live. Cambridge is a fabulous town where people want to live and work."

We continue to face one of the most challenging threat environments since 9/11, as foreign terrorist organizations exploit the Internet to inspire, enable, or direct individuals already here in the homeland to commit terrorist acts,