1. Marijuana has been legalized in several states. Some peoplebelieve this has resulted in an increase of impaired drivers on theroad and that traffic fatalities have increased as a result. Whilesome drug tests taken at the scene of accidents do indicate thepresence of marijuana, such tests only reveal that the drug hasbeen used -- they do not indicate actual intoxication, asindicators of marijuana use can stay in the system for days or evenweeks after actual use. This is unlike alcohol, where a roadsidetest is a clear indicator in most cases of intoxication. What aresome likely ethical issues arising from such testing? If people areusing marijuana for medical reasons, they will most likely testpositive for the drug's presence all the time, yet they will needto be able to drive. How can a \"legal limit\" be reasonably set ifintoxication is not measured by certain tests?