21.   But the study also sounds an early warning about the Bush plan.

22.   But the PVCs could be an early warning of heart damage.

23.   But when customers complain about real problems, eWatch reports can provide client companies early warning about product shortcomings that need fixing.

24.   By gauging ocean currents, the system may also sound early warnings for devastating tsunami waves long before they reach land.

25.   Clinton also will try to help pension plan participants understand their rights and identify early warnings signs of pension problems.

26.   Deep gurgles and belches from far underground could be the early warning volcanologists have been waiting for.

27.   Data-mining software used by financial companies could be used to spot health trends as early warnings for bioterrorism attacks.

28.   Detecting comets early enough to provide early warning will require a permanent monitoring effort.

29.   Even those with millions of dollars at stake do not get an early warning.

30.   Except, perhaps, to give early warning to wildlife on the road.