1.  This seems like a good time to avoid extravagances, including unnecessary travel.

2.  Foley also reiterated a State Department warning against unnecessary travel in Colombia because of the threat of kidnapping and murder of Americans.

3.  He said the U.S. government told its representatives in Karachi there are no known threats against Americans but urged caution and avoidance of unnecessary travel.

4.  He said the United States has told its representatives in Karachi that there are no known threats against U.S. citizens but urged caution and avoidance of unnecessary travel.

5.  School systems across the region canceled classes for today, and county and state officials urged residents to avoid unnecessary travel.

6.  School systems across the region canceled classes for Monday, and county and state officials urged residents to avoid unnecessary travel.

7.  The U.S. Embassy and other diplomatic missions have warned their citizens to take extra security precautions during the run-up to the elections and avoid unnecessary travel.

8.  Officials say that the system would prevent unnecessary travel, allowing more cars to be sold.

9.  Police were warning against unnecessary travel and advising walking or cycling where possible.