The advertising tycoon Sir Martin Sorrell reignited the row over corporate tax after he described the amount big companies pay as "a question of judgement". The comments...sparked a furious response from tax campaigners amid a public outcry over the way multinationals such as Starbucks, and Amazon have avoided paying UK corporation tax...[C]ritics accused Sir Martin...of missing the point. Richard Murphy, director of Tax Research, said, "Sorrell is assuming companies can decide which law in which country they wish to comply with. That's not true." Frances O'Grady, director-general of the TUC, said: "It's increasingly clear that some businesses see their obligations as an optional extra."