A "Robin Hood Tax" for bankers and banking

I hadn't seen or heard of this idea--a "Robin Hood Tax"--for and on the banking sector. It's described as a "Campaign video by Richard Curtis that could raise hundreds of billions for public services and to tackle poverty and climate change at home and around the world." Not only is it an excellent idea--and a simple one--but it's being supported and promoted, as you can see, in these wonderful, even funny, brief YouTube videos. And after all, who but the bankers will or would be against it? If administered intelligently and responsibly--which is possible, all you skeptics out there--it could help untold millions of the most needy and impoverished people across the globe. Great food for thought. See more here: http://www.robinhoodtax.org.uk. I can't think of anything that needs to go "viral" more than this video--and idea. (Thanks to reader and "friend" rbbrfsh for showing it to me).