But there is no harm in governments cooperating to prevent illegal activity by their citizens, including tax fraud.
IN a campaign speech this week, John McCain cited the "special responsibility" of the United States and Russia to cooperate to prevent the spread and use of nuclear weapons.
David Cameron supplied the ship on 23 April before an emergency EU summit to discuss how European countries could cooperate to prevent the deaths of thousands this summer.
IN 2008 and 2009, leaders across advanced economies did a pretty good job cooperating to prevent a global financial meltdown and survive a global recession.
Wahba, L., Amon, J. D., Koshland, D. & Vuica-Ross, M. RNase H and multiple RNA biogenesis factors cooperate to prevent RNA DNA hybrids from generating genome instability.
In one of many signs of the deteriorated relationship between the two sides, Mr. Dahlan has been prevented from returning to Gaza by the Israeli security officials with whom he once cooperated to prevent terrorist attacks.
The Israeli-Jordanian border has been generally quiet since the peace treaty was signed, with security forces on both sides cooperating to prevent armed infiltrations and attacks across the frontier.
Other farmers, whose tomatoes are already coming in late and stunted because of cool, wet weather, are waiting to see if pesticides, sunshine and luck will cooperate to prevent the infection from reaching their fruit.
The I.M.F. also played a main role in the Vienna Initiative in 2009, in which the European Union and commercial banks cooperated to prevent the collapse of the financial systems in Eastern Europe.
And last week, just hours before the war's opening barrage, two Kurdish groups met with American and Turkish officials in Ankara, where they agreed to cooperate to prevent a postwar free-for-all in the north, where Turks and Kurds have a history of animosity.
