Why do we not account for right-wing domestic terrorism?

With all the talk about "keeping us safe", we seem to be missing the bigger threat to "us".

When we speak of "us", I assume we mean domestic terrorism. So let's look at this graph from Bob Cesca. The real threat to us appears to be right-wing domestic terror.

Now clearly, in terms of the numbers of deaths, Islamic terror has claimed more victims, on the basis of 9/11 alone - as these graphs illustrate. But seeing as how UndieBomber has us ready to let our government see us naked to "keep us safe", we need to be aware of the greater risk of incident that comes from our own home-grown domestic terrorists in the anti-abortion movement.