anchor.diff:  
   unquarantine_channels(Channels) ->
       [ try
  -          ID = list_to_integer(Channel),
  +          ID = channel_id(Channel),
             logplex_redis_quarantine:unquarantine_channel(ID),
             ?INFO("at=unquarantine_channel channel_id=~p",
                   [ID])
  
positive.code:           _:_ -> ok
        end
        || Channel <- Channels].
  
negative.code: 
  quarantine_channels(Channels) ->
      [ try
            ID = channel_id(Channel),
            logplex_redis_quarantine:quarantine_channel(ID),
            ?INFO("at=quarantine_channel channel_id=~p",
                  [ID])
  