The Putnam County Sheriff's Department is participating in special efforts to bring awareness to the dangers of impaired driving.  A statewide STOP-DWI High Visibility Engagement Campaign started in New York late last month and will end on September 6th.  Sheriff Robert Langley says Labor Day Weekend and the end of Summer is one of the busiest travel times of the year.  He says the highly visible effort is aimed at reducing the incidence of drunk and impaired driving.