Yeah I wouldn’t be surprised that one day you search for 3D printing something “bad” (as defined by someone) gets you redirected to advocacy groups against something.
Search for abortion resources, search for 3D printing a firearm, search for pirated movies, search for being anonymous in a protest... all get redirected to the right way to think of things.
The FBI should just go ahead and ask them for the good of the people to redirect all terms they categorize as terroristic in nature to their anti radicalization resources...