from Wicked Local Burlington

Greg Derr / The Patriot LedgerState troopers arrest one of the people who blocked the Southeast Expressway in Milton during rush hour on Thursday, Jan. 15, 2015

A national debate about police use of force erupted anew in Massachusetts on Thursday morning as coordinated protests in Milton and Medford shut down all lanes of Interstate 93 heading into Boston, triggering a massive traffic jam and tying up dozens of public safety personnel for more than two hours. (Read the full story here.)