How safe is our plastic bottle?

I asked this question myself, and also ask the internet in http://www.lexxe.com/, but the answer is NOT 100% sure how safe is our plastic bottle. The answer still got dispute. So here the result I found in lexxe.com:

wiki.answers.com/Q/Is_reusing_water_bottles_safe

I think there is lot of argument for this topics.

The reason why I concern is we all use plastic bottle daily, especially the reuse of plastic water.

I received a forwarded email said that DO NOT use plastic bottle at all. So can I reuse my plastic bottle, the answer is : I don't know. Depend how you believe the information they given.