" ... [when launching a new product, drug] manufacturers can start with short expiration dates and then extend them as data is acquired." - Marilyn vos Savant, columnist, 12/12/04
It's incorrect, but there is a tendency for Graeco-Latin neuter nouns that take -a in the plural to become singulars in English. You see the same thing with Italian pasta names with plurals in -i. I'm sure the sticklers will bemoan it, but it doesn't bother me as much as "between you and I".
