Increasing security along the U.S.-Mexico border is an obvious necessity.

It remains uncertain whether there will be enough consensus in Congress to approve the amount requested.

The tragic events of September 11 are a cruel reminder of the necessity and the urgency of a security partnership of countries that embrace the values of democracy and peace.

It's not like an absolute necessity.

The federal sentencing guidelines should be revised downward. By contrast to the guidelines, I can accept neither the necessity nor the wisdom of federal mandatory minimum sentences. In too many cases, mandatory minimum sentences are unwise and unjust.

To make necessity a virtue (a virtue of necessity). [Lat., Necessitatem in virtutem commutarum.]