In the past year--and, especially these last few months in the wake of the recent Bangladesh factory tragedies--fast fashion retailers have been facing immense pressure from consumer and labor groups to become more socially and environmentally responsible. So Metro caught up with H&M CEO Karl Johan Persson to ask him all the hard questions about the brand's business practices--and whether it was about factories in Bangladesh or overly-skinny models, Persson didn't shy away from giving the honest answers.