Tehran - Speaking of business as unusual. A mere two months ago, the news of a China- Kazakhstan pipeline agreement, worth US$3.5 billion, raised some eyebrows in the world press, some hinting that China's economic foreign policy may be on the verge of a new leap forward. A clue to the fact that such anticipation may have totally understated the case was last week's signing of a mega-gas deal between Beijing and Tehran worth $100 billion. Billed as the “deal of the century” by various commentators, this agreement is likely to increase by another $50 to $100 billion, bringing the total close to $200 billion, when a similar oil agreement, currently being negotiated, is inked not too far from now.