Unlike their American counterparts who treat every single situation they encounter as a deadly force encounter. Will shoot or taze you at the drop of a hat for simply refusing to comply with an "order" to take your hands out of your pockets. Or for committing a misdemeanor crime...
I further think that deep down inside those police officers in Greece truly don't want to hurt those protesting, even those hurling Molotov Cocktails and they would much rather deal with them physically and just arrest them.
Where as here in America you get tazed or shot for nothing more that just running around a baseball field in Philadelphia acting like a teenager.
They will be here, when the freeloaders get cut off. And they will, and this will be the result.
If the police don't rise up with deadly force in the US, We, the People will do so.