Tim Russert was a giant in our field -- a standard-bearer of journalistic integrity and ethics.

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Officials said the goal was to root out prospective contractors that have a poor "record of integrity and business ethics, " and to combat fraud and abuse.

CNN: Clinton contracting rules opposed by business

But no internal employee, no matter how full of integrity and brimming with ethics can ever operate fully independent of management.

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As a sales manager with Cintas, I know that no company is perfect, but we strive to constantly enforce ethics and integrity with all of our sales partners.

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And we know we can accomplish our "Goals for a Better Life" if we do it with a passionate, caring, committed group of people working with ethics, values, integrity, transparency, efficiency and professionalism.

WHITEHOUSE: Goals for a Better Life

One of the leading figures in the UK's fight against doping is Michele Verroken, former director of ethics and anti-doping at UK Sport, and founder of sports business consultancy Sporting Integrity.

BBC: Doping in sport: Counting the cost