They had to rush to the IAEA ASAP. Pranab Mukherjee miscalculated when he told that they will approach IAEA only after winning a trust vote.If the deal needs to be crystallised they needed to move at break neck speed and as there was uncertainty around the Number Game for the voting, I think it made sense for Congress to proceed with IAEA now or never.I think UPA is confident that they will have the necessary numbers when it goes to the floor.BJP is unnecessarily creating a lot of hue and cry over this deal.Brajesh Mishra gave it a clean chit.They are opposing just for the heck of opposing it.They should realise that majority of the Indian population are in favour of the deal.