Can anyone recommend a good brand of Kalamata olives available in U.S.
grocery stores (or mail order)?

Also, do all the kalamata olives that you'd find any Greek restaurant
here in the states come from a jar? Or is there some fresher source
these restaurants get them from? I'm assuming kalamata olives aren't
or can't be grown in the U.S. Maybe I'm wrong.

Thanks very much.