The problem is that businesses and people aren't standing up for what is right. It doesn't matter whether other people are scared or concerned, people shouldn't be taken off the flight and detained simply for speaking a foreign language.
I'm not arguing that. It's still far from "Nazi Germany" though, and this stuff happens on a more frequent basis than you think, regardless of race as well.
Hell, I just got done watching a video of a guy being wrongfully arrested because he was carrying a firearm legally, while walking with his child. Bad training and bad business procedures will lead to stupid things like this happening. There isn't some national agenda going on though. If there was, well... it wouldn't matter anyway because our government wouldn't be capable of carrying it out successfully.