Scripps eventually renegotiated the contract, but officials worried that a subsequent $100 million anonymous gift might raise questions as to whether the money had come from tainted sources overseas.

The reviewers described the book as "riddled with factual inaccuracies, embroidered accounts of true events that border on fiction and suspect information provided by tainted sources."

Hooper said, "You're a tainted source."

What conclusions do you draw about using tainted sources to gather intelligence?

In another article, he writes of the experience with Iraq, in using tainted sources.

Voters see both Democrats and Republicans as having a serious problem with money from tainted sources.

Yes, yes, James, I realize that the reports come from tainted sources.

All his thoughts, including his Eugenic thoughts, are, by the very principle of those thoughts, flowing from a doubtful or tainted source.

Sweet money is money earned from legitimate sources, while bitter money is what comes from tainted sources, including sources associated with traditional stigma.

You don't think-perhaps," ventured Mr. Chitterwick with an apologetic smile-"that information from such a tainted source might not be entirely reliable?