Editing United Airlines Flight 175 (section)

=== Hijackers ===
{{see also|Hijackers in the September 11 attacks#United Airlines Flight 175: Two World Trade Center, South Tower}}

The team of hijackers on United Airlines Flight{{nbs}}175 was led by [[Marwan al-Shehhi]], originally from the [[United Arab Emirates]] with a stint in Hamburg, Germany, as a student. By January 2001, the pilot hijackers had completed their training; al-Shehhi obtained a [[commercial pilot license]] while training in [[South Florida]],{{sfn|Shane|2009}} along with American Airlines Flight 11 hijacker Mohamed Atta and [[United Airlines Flight 93|Flight{{nbs}}93]] hijacker [[Ziad Jarrah]]. The hijackers on Flight{{nbs}}175 included [[Fayez Banihammad]], also from the UAE, and three Saudis: brothers [[Hamza al-Ghamdi|Hamza]] and [[Ahmed al-Ghamdi]], as well as [[Mohand al-Shehri]].{{sfn|Federal Bureau of Investigation|2008|p=218}}{{sfn|9/11 Commission|2004b}}

The hijackers were trained at an al-Qaeda camp called ''Mes Aynak'' in [[Kabul]], Afghanistan, where they learned about weapons and explosives, followed by training in [[Karachi]], Pakistan, where they learned about "Western culture and travel". Afterwards, they went to [[Kuala Lumpur]], Malaysia, for exercises in airport security and surveillance. Part of the training in Malaysia included boarding flights operated by US carriers so they could observe pre-boarding security screenings, flight crew movements around the cabin, and the timing of cabin services.{{sfn|Shane|2009}}{{sfn|9/11 Commission|2004a|pp=156–158}}

A month before the attacks, Marwan al-Shehhi purchased two {{convert|4|in|cm|0|spell=in|adj=on}} pocket knives from a [[Sports Authority]] store in [[Boynton Beach, Florida]], while Banihammad bought a two-piece "snap" [[utility knife]] set at a [[Walmart|Wal-Mart]], and Hamza al-Ghamdi bought a [[Leatherman]] Wave [[multi-tool]].{{sfn|Federal Bureau of Investigation|2008|p=218}}{{sfn|9/11 Commission|2004b}} The hijackers arrived in Boston from Florida between September 7 and 9.{{sfn|Federal Bureau of Investigation|2008|p=261}}