51.   European leaders are pushing ahead with commercial ventures to exploit outer space, despite sometimes blunt U.S. opposition with military overtones.

52.   European leaders push diplomatic efforts.

53.   European leaders pushed the euro through over the skepticism of many citizens who are reluctantly relinquishing these symbols of national sovereignty.

54.   GOP congressional leaders also are pushing back.

55.   House leaders pushed through a bill that would allow some illegal immigrants to stay in the country while their residency paperwork is being processed.

56.   Israeli opposition leader pushes for U.S. support.

57.   It was left out of the park then, but conservation leaders pushed to protect it because of its environmental riches.

58.   Leaders push goal of regional free market.

59.   Many women go bareheaded, alcohol is sold and government leaders push a national creed that advocates religious tolerance.

60.   Now he is depending on the Syrian leader to push Hezbollah into an acceptable agreement.