Here's a list of unsuccessful attacks post-9/11. Not much info on how they were thwarted or if the surveillance played a role: https://en.m.wikipedia.org/wiki/L

Here's a list of unsuccessful attacks post-9/11. Not much info on how they were thwarted or if the surveillance played a role: https://en.m.wikipedia.org/wiki/List_of_unsuccessful_terrorist_plots_in_the_United_States_post-9/11 https://en.m.wikipedia.org/wiki/List_of_unsuccessful_terrori...