Those who remember the 2004 Mayday protests in Dublin will not be surprised that a planned European demonstration against austerity at the EU summit has been banned by the Brussels police.
The "democratic deficit" in the EU is not simply a technical problem of finding the right "fix" - it is the fundamental problem of the fact that European people do not want more austerity, and the EU is fully conscious that its policies lack consent - to the extent that serious protests are banned.
For more details on the protests across Europe - called by such dangerous, anti-democratic groups as, em, AfrI, ATTAC, Debt Justice Action and so on - see this site.