An excellent article has been published in Rediff.com written by B Raman, for intelligene official on the reasons for his distrust towards China.
All the points mentioned and valid and what he says at the end summerises the situation beautifully.
"Under the renewed spell of Bhai-Bhaism, or brotherhood, we have so badly neglected the vital national security task of strengthening our position in Arunachal Pradesh and the rest of the North-East that we are in no better position today than we were in 1962, when we faced an avoidable disaster at the hands of the Chinese.
The Chinese have a long memory of their painful experiences of the past. They refuse to forget what the Japanese did to them during the Second World War and in the years before that. They refuse to forget what the rest of the world did to them during the opium wars. They refuse to forget what the Americans did to them during the Cold War.
Our nation, our people and our policy-makers have no memory for the painful experiences of even yesterday."
Read the full article here