Lets see the logic in this: 7 out of 10 weapons get past TSA screening (from their own testing. Who knows how many other weapons get through?). In the US, it is entirely possible that those weapons include guns.
So your answer is to remove the guns from the pilots.
There is a term for this irrational fear of inanimate objects. Maybe people who have dangerous phobias should be removed from responsible positions on airplanes?
Hoplophobia (from the Greek ὅπλον - hoplon, meaning amongst others "arms" and φόβος - phobos, "fear" is defined as the "fear of weapons" and as the "fear of armed citizens"
Firearms authority and writer Colonel Jeff Cooper coined the word in 1962 to describe a "mental disturbance characterized by irrational aversion to weapons." Although not a mental health professional, Cooper employed the term as an alternative to slang terms, stating: "We read of 'gun grabbers' and 'anti-gun nuts' but these slang terms do not [explain this behavior]." Cooper attributed this behavior to an irrational fear of firearms and other forms of weaponry. He stated that "the most common manifestation of hoplophobia is the idea that instruments possess a will of their own, apart from that of their user." Writing in an opinion piece, Pittsburgh Tribune-Review columnist Dimitri Vassilaros asserted that the term was intended by Cooper as tongue-in-cheek to mock those who think guns have free will.[
The meaning and usage ascribed by Cooper falls outside of the medical definitions of true specific phobias. For example, specific phobias require that the person be aware and acknowledge that their fear is irrational, and usually causes some kind of functional impairment. True medical phobias of firearms and other weapons can exist, but are unusual.
I don't know about the "unusual" characterization; there seem to plenty of otherwise intelligent people posting here who are so afflicted. I guess it is necessary for them to acknowledge that their belief in the ability of guns to act without human intervention before it can be classified as a true phobia, but believing that guns corrode a person's ability to think rationally is close to the same thing.