Law enforcement was caught off guard by a white supremacist group's demonstration in Boston last weekend, according to Boston Mayor Michelle Wu. Both Wu and U.S. Attorney for Massachusetts Rachael Rollins said they were told by Boston Police and the FBI that neither agency had advance warning that about 100 members of the group Patriot Front planned to march through downtown Boston wearing face coverings. Investigators said they are now reviewing video recordings from the scene to identify members who allegedly assaulted a Black person. Wu said the city needs to be better prepared for the next time there's a...