According to Liddy and several others the orginal break-in was to obtain a file folder that contained pictures and portfolios of talents of a large prositution ring that was providing services for DNC bigwigs. In other words the DNC office was used as a front for the prositution ring. This of course is never mentioned in any news casts.
Linda Tripp advised Monica Lewinski to save the stained dress and tape conversations with Clinton, In effect she saved Lewinski's life. Tripp also reported the thefts of White House gifts by the Clintons. Thefts which still havent been investigated thoroughly.
Note that the ring was providing services to Republican bigwigs as well. John Dean married one.
This prostitution ring big-wig link to me is the most interesting, least reported portion of the history - could explain a lot concerning lack of support for Nixon from his own party.
The primary strategic reason for operating a call girl service under the control of DNC would be to gain dirt on Republicans. It's a great scam - understandably unethical but still a great scam.
Diva's Husband
The truth of "deep throat" is that top FBI agents played two cub reporters for suckers.
The Washington Post didn't do outstanding investigative reporting, they just sat still while powerful men who majored in corrupting the human spirit used them.