effects were still everywhere, and they were able to reconnect with school friends cab callaway and langston hughesalloway music) ♪ hey now, hey now! jose anderson: you had a group of african-american professionals, a group of african-american creative people from which houston and marshall could draw encouragement from the whole post-harlem renaissance era, and so that community actually helped to energize momentum for the legal campaign across the entire country. jose anderson: new york was an exciting place to be the headquarters for the campaign. in fact new york had plenty of race issues of its own. thurgood marshall: after a riot would break in harlem a code number would go out to all policemen in the 123rd street precinct - that's right in the middle of harlem. in the meantime all of the white policemen in harlem, where the riot is going on, just stand perfectly still. and don't use a weapon, don't use a gun, just stand there until you're replaced. and then these guys go out in these other cars, and the colored fella taps the white fella on the shoulder, he gets in the car. and it about, wel