Every once and a while, FLG is astonished by well-educated people who don't use the subjunctive mood when expressing a possibility or action that hasn't yet occurred in the dependent clause.
That description is far more formal than what normally goes through FLG's head, which is something like this:
FLG: Why'd they write "was" there? It should be "were."
FLG: Why "were?"
FLG: It sounds better. "Was" sounds wrong.