Two federal laws — the Fair Housing Act of 1968 and the much older Civil Rights Act of 1866 — make it illegal for both home sellers and their real estate agents to discriminate during a home sale. But more than 50 years after redlining was outlawed, racial discrimination remains an issue, housing advocates say. A multiyear undercover investigation by the National Fair Housing Alliance, a Washington-based nonprofit coalition of housing organizations, found that 87 percent of real estate agents participated in racial steering, opting to show their clients homes only in neighborhoods where most of the neighbors were of their same race. Agents also refused to work with Black buyers and showed Black and Latino buyers fewer homes than white buyers.