TSA September 11, 2021 12:58 pm How Security Has Changed at Logan Airport Since 9/11 Two of the four planes used in the September 11 attacks left from Boston’s Logan airport. Twenty years later, security is tighter and agencies are now working more closely to help stop threats. US & World Videos 2:05 MIT students suspended amid pro-Palestinian protests 0:21 Man arrested in Centerville stabbing that sent victim to hospital 2:09 Police investigate reports of shots fired in Mattapan 20:21 Karen Read trial: Defense calls Canton police lieutenant's credibility into question 1:59 Car crashes over wall in Westford