It’s possibly both, Lyle?

I can easily accept that hundreds of thousands of innocent people have been displaced, horribly treated and want to escape from where they are.

Its also very likely that people like ISIS and Al Quaeda and others have inserted their own fifth columnists into refugee groups as an easy way to enter countries and fight their war on enemy territory.

Im not sure they are all ‘invaders’, but I reckon some are.