71.   But even this carefully balanced itinerary could touch off controversy.

72.   But in April, a series of front-page articles in The Daily Princetonian, the student newspaper, called attention to the decline and touched off a campuswide debate.

73.   But for years, vacancies have touched off contests among politicians over whose top aide or ally will be appointed.

74.   But it has also touched off a wider national debate about racism, and now brought about major reform.

75.   But Heffernan rejected the request, touching off a public uproar.

76.   But not all of my movies touch off the hair of the back your neck.

77.   But now the regulations are changing, opening up new areas like retail banking in ways that will probably touch off banking wars.

78.   But Rabin feared that letting the Palestinians know this would touch off a crisis, because it was far less than the Palestinians wanted.

79.   But last Thursday she touched off a political torrent when she tried to back away from that promise.

80.   But Stollmann immediately touched off hostility within the party.