Why is Russian meddling in the US Elections such a big deal? The US has been meddling in elections around the world for decades. If the US is setting such a low bar interfering in other countries' elections, why should the care that other nations join them in steeping to such a low level that the US has created themselves? 

Is it yet another example that when the US does something, it is in defence of freedom. When another country folliows suit it is deemed as an attack or an act of terrorism.