As search and rescue crews once again depart a rural Nova Scotia community without finding two children who disappeared more than two weeks ago, a retired RCMP dog handler says it is baffling the siblings are still missing after such wide-scale searches. 

Lilly Sullivan, 6, and brother Jack Sullivan, 4, have been missing since May 2, when police received a 911 call reporting they had wandered away from their home in Lansdowne Station, a sparsely populated area about 140 kilometres northeast of H…