Arguably known as the world's greatest footballing country, Brazil's national game is currently facing its worst ever crisis. Qualification for next year's World Cup is in severe jeopardy, but troubles on the pitch are exceeded only by allegations of corruption made off it. Paul Kenyon reports on the country's government inquiry which has heard allegations of bribery and corruption at the very highest levels of Brazilian football, including reports of human trafficking in underage players to clubs in Europe.