World Trade Center site
On the morning of September 11, 2001, Islamic terrorists affiliated with Al-Qaeda hijacked American Airlines Flight 11 and United Airlines Flight 175, both which were en route to Los Angeles, and intentionally crashed them into the two main towers of the World Trade Center. The towers collapsed within two hours of the collisions. 2,606 people, including 2,192 civilians, 71 law enforcement officers, and 343 firefighters, who were in the towers and in the surrounding area died in the attacks, as well as 147 civilians and the 10 hijackers aboard the two airliners. After the collapse of the World Trade Center, hospital workers and law enforcement officers began referring to the World Trade Center site as "Ground Zero".
Hostage Rescue Team
Some higher-profile cases include the Waco siege; Ruby Ridge; the capture of the suspected masterminds of the 1998 bombings of the US embassies in Africa; the rescue following the 2013 abduction of a five-year-old boy in Alabama; the hostage rescue operations of prison guards at Talladega, Alabama, and St. Martinville, Louisiana; and the January 29, 2016 confrontation with militants involved in the occupation of the Malheur National Wildlife Refuge. On April 19, 2013, the Hostage Rescue Team arrested a man in Watertown, Massachusetts, after a manhunt for Dzhokhar Tsarnaev, one of two perpetrators of the Boston Marathon bombing of April 15. HRT rescued a teenager by killing her abductor on August 10, 2013. HRT rescued kidnap victim Frank Arthur Janssen. The HRT assisted in the capture of Eric Frein, the sole suspect in the 2014 Pennsylvania State Police barracks attack. The FBI HRT was deployed to the 2016 Republican National Convention and the 2016 Democratic National Convention