Or just don't accept swipe-only cards at pumps(or any machines where there is no human). But that's not going to happen until every person in US upgraded their card to chip-and-pin.
I don't know how much this would help by itself. People installing skimmers can just install something that looks like a swiper even though the transaction would never complete. I think most if not all cards in the US with a chip can still be used online, so swiping it at all still gets you enough to use the card.
