Right, but I don't need to be 'very concerned'; the airline industry is very effective at preventing it. If I was going to be 'very concerned' about potential

Right, but I don't need to be 'very concerned'; the airline industry is very effective at preventing it. If I was going to be 'very concerned' about potential risks without considering mitigation, there's fuel tanks exploding, running out of fuel, drunk pilots, hitting mountains, runway collisions, etc. etc. Pieces of FOD don't seem to rate ... My point is about risk, of course. FOD is not an effective risk to me.