Let's see, How about, "We just don't like you". Good enough reason for me.
This guy has an ugly tract record a mlle long that is very well known, but you can bet that the government has a number of very good reasons to exclude this POS that they aren’t talking about. Some of it they cannot talk about because doing so would reveal some particularly useful sources in the UK and here. All that said, no foreigner has a right to come to this country and we can turn them down without cause. What is Notre Dame thinking? Who would want their kids “educated” by this kind of scum?