Scores of marching bands, dance squads, fraternities, sororities, and civic organizations are gearing up for Baltimore’s most-anticipated parade--honoring the legacy of Rev. Martin Luther King Jr. We visit some participants as they prepare for the big day Monday … and ask, what does taking part in the MLK Day parade mean for them?We hear from the Dunbar High School Marching band and the Alpha Phi Alpha Fraternity … and longtime parade devotee Hassan Giordano, who tells us why he shows up each year, no matter how cold: