21.   But a resident who picks up the phone is deprived of the knowledge that caller ID is meant to provide.

22.   But one day this fall, a caller was vehement.

23.   But remembering to do all that in an emergency can create problems, especially if the caller is a child.

24.   But McGinty said he now gets the impression that his callers are ready for some federal intervention to get the District back on track.

25.   But the caller is not without some leverage.

26.   But what if a caller is angry and, say, wants his neighbor dead?

27.   Caller has been in prison and is very nervous about talking to police.

28.   Caller ID was bad enough.

29.   Callers are generally polite, not confrontational.

30.   Caller ID is already available in most states.