Our findings provide troubling evidence that MCOs may face the greatest challenges in changing the self-monitoring behavior of the patients at greatest risk for poor health outcomes.

But there's been troubling evidence that this may not be true.

But the troubling evidence is circumstantial at best, he said, and the facts are inconclusive.

The most troubling evidence comes from Ohio, a key swing state, whose electoral votes decided the 2004 presidential election.

But that mood is moderated by the widespread belief, based on troubling evidence, that Kenneth Starr, the independent counsel, used improper tactics to catch him.

In addition, the study said, "There is troubling evidence that worldwide, new cars are becoming less efficient" in their use of fuel.

Again, Emerson cites some troubling evidence - speeches, letters, visiting professors who later engaged in terrorism against Israel.

The inquiry conducted by the department revealed troubling evidence of "widespread wrongdoing."

The bureau assigned more agents to the W-88 investigation, gathering new and more troubling evidence about the main suspect.

He later reported "troubling evidence" that the letter had been fabricated but said the evidence did not rise to the level of proof warranting prosecution.