11.   And the uncertainties about mailing volume and paper and printing costs are causing further havoc.

12.   At times, superstorms on the Sun can drive the northern lights almost to the equator and cause widespread havoc in radars, radios and power grids.

13.   Bluthenthal always seemed to be running all over the house, getting into things and causing havoc.

14.   A club has high value, too, during periods of bad weather when delays and cancellations cause havoc.

15.   A filibuster now would cause maximum havoc, because Congress is due to adjourn in three or four weeks.

16.   A quirk in the Federal Bankruptcy Code that had caused havoc with condominium and other housing associations has been eliminated.

17.   A sudden surge in interest rates could also cause havoc.

18.   All sorts of things can cause havoc on a book tour, from cancellations to problems with public hecklers.

19.   All suffered hemolytic uremic syndrome, or HUS, which can lead to temporary kidney failure, and can cause havoc in other organs.

20.   But another devaluation in Brazil would cause havoc, leading Calvo to suggest it may be time for Brazil and Argentina to consider a common currency.