27 different women who have accused comedian and actor Bill Cosby of sexual assault have agreed to a joint interview with NBC?s ?Dateline? on Friday. This is a feat the network is marketing as the first time nearly half of the people who have accused Cosby of the crime have gathered together in the same place to discuss the issue. Kate Snow, the NBC News correspondent who was recently named to host the Sunday edition of ?NBC Nightly News,? will conduct the discussion.