Police say they are scaling back their search for two siblings missing since Friday in Pictou County. The active search will be reduced and efforts will be concentrated on specific areas, including places that have already been searched. Six-year-old Lily and four-year-old Jack wandered away from their home in Lansdowne Station. Since then, 140 trained searchers, police dogs and heat seeking drones have been searching for them. Police say the decision to scale back the search is based on the likelihood of survival which they say at this time is low considering their ages, time passed and environmental conditions.