21.   But some have indicated that the attacks came at a particularly difficult time.

22.   But the attack came from an unexpected quarter.

23.   But the harshest attacks came from Forbes, a longshot candidate who is under criticism for his use of negative ads.

24.   But the rebels had expected the attack to come in the darkest hours before dawn, not in the light of day.

25.   But they say they cannot tell where, how, and when such attacks might come.

26.   Emergency planners are under no illusions that the training will eliminate panic if an attack does come.

27.   Even if those responsible for the recent anthrax mailings are caught, another attack could come without warning.

28.   Finally, the attack has come at a steep cost.

29.   For weeks, Israeli intelligence officials had warned an attack was coming.

30.   For weeks, drug company lobbyists were saying they feared the president would attack their industry before a national television audience, but the attack never came.