The National Transportation Safety Board is recommending that all new vehicles in the U.S. be equipped with blood alcohol monitoring systems that can stop an intoxicated person from driving.The recommendation, if enacted by the National Highway Traffic Safety Administration, could reduce the number of alcohol-related crashes, one of the biggest causes of highway deaths in the U.S.The new push to make roads safer was included in a report released Tuesday about a horrific crash last year in which a drunk driver …