Service dogs can be used for a variety of things. From helping blind people navigate crowded city streets. To finding people trapped in the rubble of an earthquake. To finding missing children or fleeing criminals. But now, a noted New Jersey dog trainer is preparing canines to sniff out cancers. The program is so successful that fire unions and fire departments across the nation are using its dogs because firefighters have higher incidents of cancer than the general public. Gary Baumgarten talks with trainer Janice Wolfe for the Paltalk News Network.