i am not sure the 9/11 argument is germane, even if trump used it!!!!
that was the al qaeda incident. but we are now having bigger issues with isis.
the seven country ban looks like it reflects the places where BOTH the rule of law is weak and isis is strong.
also, the test of which countries produce the most dangerous people must include failed attacks and terrorism events within the country - anyone can get on a plane. i produced the stats for which countries generate the most terrorism incidents recently. i think these seven were in the top ten.
but i still think folks like you, clo, should talk about the other side of the issue. american security also matters. islamic extremists threaten american security. please solve (without saying love is the answer)!