CEMEX SAB de CV (CEMEX ADR) AND REVERSE DISCRIMINATION?

Has CEMEX SAB de CV (CEMEX ADR) enaged in REVERSE DISCRIMINATION? It appears that CEMEX has a double standard policy, which allows for minorities with criminal convictions to gain, maintain and retain employment at its US operations while other groups are denied employment.  According to CEMEX's own company policy, they have a zero tolerance for drugs and alcohols, yet members of their management team have criminal convictions.  As African Americans move for equality, the issue must be address with fairness.  The issue of reverse discrimination and double standards in hiring practices has been submitted to President Karl H. Watson, Frank Craddock of Operations and Mike Egan, General Counsel, but to no avail.