Licensed marijuana stores in Washington state can offer free joints to promote on-site COVID-19 vaccine clinics, officials said Monday. The state Liquor and Cannabis Board is calling the effort the “Joints for Jabs” program. The board says licensed adult-use marijuana retail shops can give away a single pre-rolled joint to anyone over 21 who gets a shot at an on-site vaccine clinic held by July 12. The board has already allowed breweries, wineries and restaurants to offer free drinks in exchange for proof of vaccination — though alcohol-serving establishments have not had to host a clinic on-site to give out...