1.   But the central government intervened to block information disclosure on the grounds that to do so would compromise defense policy.

2.   Congressional aides said Sen. Tom Daschle of South Dakota, the Democratic leader, intervened to block any impression that Democrats were proving an obstacle to antiterrorism legislation.

3.   Also, President Bush could intervene to block the strike.

4.   George W. reportedly said before younger brother, Jeb, intervened to block a physical confrontation.

5.   Last October, then-President Clinton intervened to block a House resolution that would have labeled the Armenian killings as genocide.

6.   The government intervened to block the march in hopes of avoiding a repetition of the rioting that swept Northern Ireland a month ago.

7.   There was no explanation for the change of plans and Israeli officials said they had not intervened to block the flight.