41.   As the fen-phen craze gained momentum, the FDA was presented with a new dilemma.

42.   As the jazz renaissance has gained momentum, new power brokers had come on the scene.

43.   As Congress gains momentum in efforts to cut welfare to longtime recipients and to unwed teen mothers, among others, Gray is worried.

44.   As their investigation gained momentum, they said, the links to bin Laden quickly began to emerge.

45.   As tax reform gains momentum on Capitol Hill, two veteran lawmakers will introduce a plan Tuesday to tax what Americans spend, not what they save.

46.   As these shifts gain momentum, three senior officials have departed.

47.   As the activities at the base have gained momentum this week, the security has been consistently tight.

48.   As the explorations continued though December, the deal gained momentum.

49.   At the very least, the stalled impeachment proceedings against Yeltsin will gain fresh momentum.

50.   At the same time, the cases of Evers and Dahmer gained local momentum, pushing Neshoba to the side.