I'm not sure which worries me more > Delta is fourth major U.S. airline to find fake jet aircraft engine parts or > Delta is fourth major U.S. airline to fin

I'm not sure which worries me more > Delta is fourth major U.S. airline to find fake jet aircraft engine parts or > Delta is fourth major U.S. airline to find fake jet aircraft engine parts Is it worse that at least four major airlines have detected this problem, or, is it worse that this seems to suggest that there may be significantly higher numbers of minor airlines that have discovered this? The article itself didn't really seem to clarify on specifics, but instead outlined towards the end which other airlines have discovered the same problem.