Turning away troublemakers is a smart thing to do. There are more than enough talented people waiting in line. People who will not shout down professors, occupy university buildings and protest against the government of the country that received them as guests.
Yes, being anti-protest... surely this will go over well to a largely American audience on an American website. Surely this doesn't go against the core and fundamental beliefs that founded our country.
You'll find there's a high correlation between intelligence and being regarded as a troublemaker. Also a correlation with strongly held beliefs of many types, including moral beliefs.
Challenging authority is a requirement of progress - if you can't criticize the system how can you dream of improving it?
Yeah, we should never host foreigners who protest what they view as fascism, such people aren't worth having. Remember the dumb Albert Einstein! What horrible political views he had.
Turning away troublemakers is a smart thing to do. There are more than enough talented people waiting in line. People who will not shout down professors, occupy university buildings and protest against the government of the country that received them as guests.