While these groups have not yet issued media releases specifically addressing the upcoming anniversary, terrorist messaging celebrating the attacks has typically been released on or closer to September 11, according to the bulletin.
“Media produced by AQ, 伊斯兰国, and their affiliates and branches which reference the 9/11 attacks likely reinforce [homegrown violent extremists’] anti-US sentiments and contributes to their radicalization by serving as a reminder of past success in targeting the United States,” the bulletin says.
另外, the bulletin points out that homegrown terrorists have only rarely carried out attacks in response to symbolic dates or events.
“We have observed no indication that the anniversary or the 9/11 date itself are driving [homegrown violent extremist] plotting,” the bulletin says.
然而, the agencies said they “cannot rule out that a confluence of factors, including the US withdrawal from Afghanistan,” could contribute to violence.
The bulletin also notes that the agencies are currently are not aware of any specific, credible threats related to 9/11, but cannot discount the possibility that mass gatherings on or around the date may be perceived as attractive targets of opportunity.