Li Hongzhi explains the difference between Wushu Qigong or traditional Martial Arts and Falun Dafa in this excerpt from his book "Zhuan Falun":
http://www.falundafa.com/book/eng/zfl_66.htm
The practice of Falun Dafa is a very controversial topic in China. The practice grew to the point where it was a threat to the Chinese Communist Party and practitioners were exiled and tortured for practicing. It is very political. There is a lot of information on the net about this. There is also a lot of mis-information out there. It is best to read about it yourself and make up your own mind.
Here is a forum that shows this difference in opinion:
http://forum.kungfumagazine.com/foru...hp/t-4998.html
I believe people should have the freedom to practice whatever spiritual exercises they want. Falun Dafa explains how to open the celestial or third eye and there are many other spiritual practices that explain this same process eg. Hinduism. If the goal is to spread love and positive thought, then it doesn't matter what path we choose to follow. As long as we grow along the way and look out for each other with positive thought and a pure heart is the main thing.