They are a rival. Enemy or friend is too early to say. It can goes both ways for us. Some era, friend. Different era, it can be enemy. The US is a very unique country. They have the option to be our best friend in this era but they chose to be our rival and enemy. However, human progression like space exploration should be put aside from politics. I am very interest to know what really out there, especially on Mars. Only US-China collaboration can make that happen by 2020.
They fear us. They scare we are going to reverse engineer their tech and spot their weakness and leapfrog them. It is understandable, though. If we are in their position and with mistrust, we wouldn't share our technology. Thanks to them, we are determine to research and learn ourselves and here we are, catching up in the realm of space.
neverless we enjoy hacking 
...and tell us more about you Vietnamese, what can you guys possibly do? 
This is what they do bestWe Chineses have been falsely accused
actually, some british guy came up with the idea. many people laughed at him. the chinese team created mathematical simulation to prove his theory and got promising result. they published it in some science journal magazine.. they then made a working prototype with positive output thrust of 720 mN. still, many laughing at that brit guy and the chinese. now, NASA just done it too with an output thrust of 1000x weaker than the chinese one. it works, and it's magic. many people now only remember NASA genius
, this is so fcking retard we could have secretly develop further this technology ourself instead of alerting NASA and the world
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, we will overwrite US science fiction with ours 
