Lots of people have written to note that the MPAA has now acknowledged a major error in much-promoted study about the impact of movie piracy.  Having overstated those numbers so fundamentally – and relied upon them before the U.S. Congress – it must surely raise questions about the accuracy of other data, notably the claims that the industry used to convince the Canadian government to introduce anti-camcording legislation.  There have been all of two arrests in Canada in seven months since the new provision was enacted.