Well...yes and no. Remember that in the USA every single day an average of 41 people are shot and killed. The number of mass killings in the USA greatly overshadows events that are normally labelled as a terrorist act.
We are not even halfway through 2017 yet there have been 24060 shooting incidents resulting in 5895 deaths in the USA.
View attachment 197458
We deploy tremendous resources into terrorist prevention and response world wide (as we should).... but with the largest threat in the USA being from non-terrorist violence, it could be argued that the same level of preventiveness for that issue doesn't exist (or isnt working).