It is looking as if Omar Mateen could have and should have been stopped.

[jberryhill]

35. Do you believe the government should have the power to have people fired by putting them on a list?

The FBI doesn't notify anyone that someone is on the terror watch list.

The last time we had the government in the business of putting people on lists through unstated criteria, and leaning on their employers to fire them, it didn't work out well.

https://en.wikipedia.org/wiki/McCarthyism

During the McCarthy era, thousands of Americans were accused of being communists or communist sympathizers and became the subject of aggressive investigations and questioning before government or private-industry panels, committees and agencies. The primary targets of such suspicions were government employees, those in the entertainment industry, educators and union activists. Suspicions were often given credence despite inconclusive or questionable evidence, and the level of threat posed by a person's real or supposed leftist associations or beliefs was often greatly exaggerated. Many people suffered loss of employment and/or destruction of their careers; some even suffered imprisonment. Most of these punishments came about through trial verdicts later overturned, laws that were later declared unconstitutional, dismissals for reasons later declared illegal or actionable, or extra-legal procedures that would come into general disrepute.

A prime target: homosexuals:

https://en.wikipedia.org/wiki/Lavender_scare

Both homosexuals and communist party members were seen as subversive elements in American society who all shared the same ideals of antitheism, rejection of bourgeois culture and middle-class morality, lack of conformity; they were scheming and manipulative and, most importantly, would put their own agendas above others in the eyes of the general population.[21] McCarthy also associated homosexuality and communism as "threats to the 'American way of life'."[22] Homosexuality was directly linked to security concerns, and more government employees were dismissed because of their homosexual sexual orientation than because they were left-leaning or communist. George Chauncey noted that, "The specter of the invisible homosexual, like that of the invisible communist, haunted Cold War America," and homosexuality (and by implication homosexuals themselves) were constantly referred to not only as a disease, but also as an invasion, like the perceived danger of communism and subversives.