Did Amtrak steal the MTA's tag line?

So, as stated earlier, I was in DC yesterday on business. (I needed a nice, long, uninterrupted block of prep time so decided to take the Acela rather than the Delta Shuttle.) Among the announcements from the conductor was the plea, "If You See Something, Say Something," which I also later saw in a truncated version—"See Something, Say Something"—on a poster in Union Station. Yes, it was a direct ripoff of Korey, Kay & Partners' "If You See Something, Say Something" campaign for the MTA, which launched back in 2002. I know Amtrak is cash-strapped and all, but can't they think up their own anti-terrorism tag line? Sheesh.