Anyone know why scientists in the USA want to abandon the "leap second"?

Yesterday's news claimed that, at the moment, noon is supposed to be when the sun is directly overhead at the Greenwich Meridian. That's what all the really accurate atomic clocks synchronise to. However the earth's rotation is slowing down a little, meaning that the atomic clocks are getting ahead of the moment where the sun is directly overhead at the meridian so, every now and then, the nations get together and agree to have a "leap second" to resynchronise matters. But, the news said, scientists in the USA don't want to do that any more. It didn't say why, though.

Anyone?

Gray D(ecelerating all the time)