Some Maine sheriffs are among those against the effort to legalize the use of marijuana in Maine. Four of them say pot is a so called "gateway drug" and they fear it will damage communities. Sagadahoc county sheriff Joel Merry says marijuana also has a negative effect on a developing brain. They join some healthcare providers who are taking a stand against the legalization being considered by lawmakers. One healthcare provider says marijuana costs the state $1.2 billion dollars annually for health care, social services and related costs.