You'd certainly think so if you go by the mainstream media.
The link's a couple of weeks old, but refers to a pipe bomb attack on a mosque in Florida, which seems to have managed to escape the mainstream media's attention. It also seems to be very difficult for those parts of the MSM that did notice it (largely local media in Florida) to bring themselves to admit that white Americans can be terrorists, or that someone attacking Muslims with the intention of creating fear could be considered terrorism.
It sure is good that white Americans don't commit terrorist acts, huh?
Edit: D'oh! Shaker BlueRidge points out that Liss already posted about this. Sorry 'bout the repeat, folks.