Former BBC Trust private banking boss said he was unaware of tax evasion . Chief executive Stuart Gulliver and Rona Fairhead also angered MPs . HSBC chairman was either 'incompetent ' or aware of wrongdoing .
Former HSBC private banking boss said he was unaware of tax evasion . Chief executive Stuart Gulliver and Rona Fairhead also angered MPs . BBC Trust chairman was either 'incompetent ' or aware of wrongdoing .