11.   Beach lifeguards hoist red flags when currents are dangerous, and yellow flags when they are merely strong.

12.   Beneath the easy-going rapport, though, were cross currents of the most serious nature possible.

13.   A second current is the growing fear in the workplace.

14.   But the current was brisk and the surface simmered, tilting the odds our way.

15.   But the political and partisan currents are strong.

16.   But there are other currents in the royal family that have been difficult to discern.

17.   But there were deeper currents.

18.   But warm offshore currents are definitely at work.

19.   Currents are unpredictable and can carry even expert swimmers quickly.

20.   Deaver said that if the current flowing through the cathodic protection wire is too low, the wire will fail to protect the pipeline from corrosion.