Very true...the left had 2 years and they did not act, under the ( mis)understanding that the Us would not budge. Even the BJP is acting in a very destructive an immature manner , because it is very clearly stated in Jaswant Singh's " A Call to Honour" the current agreement is a add on to the NSSP started by the BJP led NDA government.
Its high time all the political parties in India ( including the UPA parties) grow up and act in India's interest, putting their selfish interests behind!!!