Is the 25-percent rule a requirement that
foreign carriers have a quarter of their
holdings in the U-S or limits their holdings
to 25? Could someone explain it?

Again, I think the JFK and LAG airports and
some of the other big airports are locking out gates to keep out the discount carriers.
I would like to have a few more choices
at my disposal if the "majors" are overpriced. CATMAN