Federal officials are still investigating the cause of the Buffalo crash. Apparently, the pilot gave no hint of trouble before the accident, which killed 50 people. Ironically, Continental's stock soared Thursday after it was upgraded to a Buy by Merrill Lynch, which argued that the carrier would benefit from lower fuel prices.

Headlines about crashes always make people nervous, even though flying remains remarkably safe. At the same time, the two crashes highlight the economic reality of the airlines. For one thing, as profits from airlines get squeezed, interest in flying smaller, more fuel-efficient aircraft grows. And fewer airlines are flying to smaller cities. Some towns are being left without airline service at all.

So people can continue to fly with peace of mind . . . if not much room.