well, the news today out of libya, a testament to the force of the people coming together and rejecting whatever the status quo was. in this case, the stakes were about as high as they get in any nation. but from tripoli to tiananmen square, right down to the streets of cairo this spring or wall street this fall, we have seen the power of protest flexed at home and abroad. why is it that some uprisings and demonstrations come to succeed while others splinter and fail. and how much does the occupation in america have in common with the events and principles of tahrir square or tiananmen square? and here with us now is chai ling, one of the student leaders of the tiananmen square protests of 1989, who is now advising the occupy boston protesters. she's also author of "a heart for freedom." also with us, matt taibbi, contributing editor for "rolling stone," who has been covering the occupy wall street movement extensively and matt's book