A wave of anti-Semitic and racially charged graffiti hit several locations in Medford, Massachusetts over the weekend, leaving local residents and officials vowing to mount a vigorous investigation into the identities of the perpetrators who desecrated the city on the eve of Holocaust Remembrance Day. According to Police, 12 different areas of South Medford including Tufts University, local schools, playgrounds and posted signs were tagged with swastikas, racially charged language and apparent gang symbols. …