False sense of security much?

I've been meaning to post this for a while: how long has there been a plastic seal on Eversweet Margarine? It's margarine. You'd see if someone put a needle in it or something - the mechanical swirl on top would be disturbed! And does this plastic seal really make much difference? Has this been going on for a long time? Next, I'm picturing 1-lb blocks in bullet proof foil.