毛澤東何以發動文革?

[travelat]

http://www.youtube.com/watch?v=1oNhQysdLhw

http://www.youtube.com/watch?v=8rsqTEDy_Q4

http://www.youtube.com/watch?v=d4lhXCy3DXA&feature=related

http://www.youtube.com/watch?v=tz6ovLJw128&feature=related