Manmohan Singh or be it any other Prime Minister is the Prime Minister of the entire nation. He is not the Prime Minister of only a few people or of the Political Party. When the PM is outside and and specially during the G8 when India is looking for a permenant membership in the UN security council. Such moves by the opposition and spineless political parties will only reduse India's image and position in the international world.
This nuclear deal was first introduced during the Vajapayee govt (BJP rule) and now they are opposing it. But if they form a govt in 2009, I am sure they will for sure sign this agreement. The opposition should play a fair game. The Prime Minister singh represents India as a whole and every Indian. An Unstable PM depicts an unstable India.