I'm not suggesting courage will protect you, I'm saying it will stop people from allowing their dignity, quality of life, and freedom of movement degraded for objectively insufficient reasons.
You are free to disagree with me on whether or not the reasons for additional security are 'objectively insufficient', but my personal opinion is that the additional security I've seen is reasonable when it comes to international travel. For domestic travel, I think it's overkill in places, a position consistent with my original comment above.