21.   American policy now is focused on trying to plug the leaks in a ban on weapons trade with Iraq.

22.   By morning, the leak was plugged, and cleanup teams were working to contain the spread of the oil slick, Timoshenkova said.

23.   But the Congress expects much more from Gandhi than to merely plug a leak in the political vessel that had seemed in increasing danger of sinking electorally.

24.   Crews were trying to plug the leak early Tuesday.

25.   Crews toiled in freezing temperatures Saturday to plug a leak in an underground gas storage facility that caused explosions and towering gas geysers in this central Kansas town.

26.   Crews were still trying to plug the leak early Tuesday.

27.   Demand for water is increasing and officials have failed to plug leaks in the water supply pipelines or clear silt from Lake Carraizo.

28.   Demand for water is increasing on the island and officials have failed to plug leaks in the water supply pipelines or clear silt from the reservoirs.

29.   Engineers worked around the clock to try to plug the leak.

30.   Five homes were briefly evacuated but the families were allowed to return after firefighters plugged leaks in a gasoline car and a fuel-oil car.