"But when it came to prosecuting Pfizer for its fraudulent marketing, the pharmaceutical giant had a..."

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But when it came to prosecuting Pfizer for its fraudulent marketing, the pharmaceutical giant had a trump card: Just as the giant banks on Wall Street were deemed too big to fail, Pfizer was considered too big to nail.

Why? Because any company convicted of a major health care fraud is automatically excluded from Medicare and Medicaid. Convicting Pfizer on Bextra would prevent the company from billing federal health programs for any of its products. It would be a corporate death sentence.

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