[shiroiushi]

Forget how many people are killed, because when you get to that point, then things have already gotten really bad. Look at the leading indicators first: how many near-misses and other incidents (like mechanical failures) have happened in the US over the last 25 years, and is the trend up or down?

The incident with the 737 door falling off is a good example here: this would have been a fatal incident if this had been a full flight. Thankfully, the seat next to the door was empty that day, so no one got seriously hurt, but it could have been much worse.

It's hard to tell for sure without a reliable source of unbiased data rather than various news stories, but it sure seems that the frequency of incidents (in the US) is rising lately, not falling, and that's not good, it's like the canary in the coal mine. Things need to be fixed before planes start falling out of the sky with spectacularly fatal results because too many deep systemic problems have come together to destroy the safety record that existed before. Instead, too many people want to rest on past successes, saying "look! It's so safe compared to driving!" and do nothing.