The turnaround in accident figures came in the face of persistent warnings, especially after 1985, that deregulation of the airlines in 1978 was inexorably eroding the safety margin in airline travel.

After persistent warnings from his parents, coaches and teachers that he was about to miss the boat, Smith said he redefined his priorities after his sophomore year.

Despite persistent warnings by the Federal Reserve chairman, Alan Greenspan, about "irrational exuberance" and "excessive optimism" in financial markets, one of the longest bull runs in history continued.

Officers said that persistent warnings, educational campaigns by commanders and consistent punishment of violators also had deterred drug use.

And through his brain sang a subtle warning... a persistent little warning that hammered at his thoughts.

What hasn't been adequately considered - despite persistent warnings --is the dramatic increase in global trade in alien animals and plants, and the accidental transport of other species in ships and planes.

He became conscious of a vague, persistent warning that plucked at his mind.

Even the recent volatility of Internet stocks and persistent warnings of a bubble aching to burst have not stanched the flow of new offerings.

SICK of all those persistent warnings about viruses on line?

In Tunisia, however, some pro-German Destour leaders had been willing to work with the Third Reich, despite Bourguiba's persistent warnings.