Farmers know that it is necessary to make hay while the sun shines.

VOA: special.2010.01.31

While not stipulating dollar amounts of U.S.military aid, it authorizes such sums that are necessary to help the country deal with security needs.

VOA: standard.2009.09.24

Grayson says that while Felipe Calderon's campaign against the powerful drug lords is a necessary effort to protect the nation from criminal enterprises, it will not end narcotics trafficking.

VOA: standard.2009.06.09