First of all, the big problem with people at this website is that they all seem to think that every song only has one solid meaning.
Obviously, the tienimen square reference is not about the entire song. They are saying "why don't you ask the kids at tienimen sqare, was fashion the reason why they were there," Critizising how american youth are only concerned with fashion and materialism, unlike the chineese youth who gave their lives for what they believed in, and stood up for political injustice.
I also think that the "she's scared that I will take her away from there. dreams and a country left with no one there" is talking about a girl that is in love with the country she is in, and does not want to leave, possibly a girlfriend of a band member.
The other points in the song are very apparent, such as that propaganda leaves us blind to what really goes on in politics today, and how it mesmerizes the simple minded, all which is stated in the song itself.
