Source:
BBCTens of thousands of people have been protesting in Budapest over Hungary's controversial new constitution, a day after it came into force.
The country's governing Fidesz party pushed the law through parliament in April after winning a two-thirds majority in parliamentary elections.
Opponents say it threatens democracy by removing checks and balances set up in 1989 when Communism fell. <snip>
The dispute has cast doubt over talks on a new financing agreement with the EU and IMF, seen as vital for market confidence in the central European country.
Read more:
http://www.bbc.co.uk/news/world-europe-16387117
As usual with the BBC, much more at the link. Nick Thorpe's sidebar states "the streets belong to the opposition."