This blog hasn’t seen any updates for a while. I have just came across an idea of Tobin tax, which I was barely familiar with before. So I did some research and found an article that explains more or less what is it about and lists all the pros and cons. Hope this could be helpful. Btw, we could try debating on Tobin tax the next session, or it could be a great motion for an open motion tournament, since it is very hard to debate on it for a non-economist.
Some more also could be found here http://mondediplo.com/1997/12/leader