This has been a long time coming. Not as globally significant as the death of Osama bin Laden, but to the families of the victims of Srebrenica, this is very big news. Plus it could very well be the removal of the final hurdle for Serbia's entry into the EU. Their record for arresting and detaining individuals wanted for war crimes is poor at best.
Ratko Mladic arrested: Bosnia war crimes suspect held
http://www.bbc.co.uk/news/world-europe-13561407