China turns friendly with India - but why?

When China's former premier, Wen Jiabao, visited India in December 2010, he was full of talk about the two countries' joint aspirations, their friendship, their co-operation, and about how their two-way trade would almost double to US$100 billion a year by 2015.

In a speech in Delhi, Wen said their civilizations had "once added radiance and beauty to ea…