Poll: Ten Oscar-nominated Whistleblowers

Everyday heroes who had the courage to jeopardize their lives by revealing hidden injustices to the public eye... whether men or women, fictional or real, triumphant or tragic, here is a list of ten memorable movie whistleblowers's performances that earned an Oscar nomination in a Leading Category. From these 10 Oscar-nominated characters who 'knew too much', which one do you consider the most admirable? Discuss here In bold, what they denounced.