BJP today rejected UPA's offer of a special Parliament session to debate the 2G scam. The party stuck to its demand for a Joint Parliament Committee probe into the issue. Party spokesman RaviShankar Prasad said in Jammu that a JPC and probe would bring out everything.Union Finance Minister Pranab Mukherjee had yesterday proposed to convene a special session of the Parliament to discuss whether to set up a JPC to probe the 2G scam.