evidence: Vivek Ramaswamy is once again Just Asking Questions about what happened on 9/11. [...] It's not the first time Ramaswamy has expressed outside-the-mainstream views on 9/11. [...] While there is some evidence of potential Saudi involvement, there's no evidence to suggest that federal agents were involved. In the two decades since the attacks, self-proclaimed "truthers" have argued — falsely — that the government was involved or had detailed advance knowledge of impending terrorist attacks.