Are there sufficient protections in the workplace against religious discrimination?

Key legislation and corporate guidelines provide a framework for employers to govern their actions and protect them from legal action; however, the typical employee with limited resources and the need to remain employed will frequently accept discriminatory action in fear of retribution or retaliatory acts. Critics argue that discriminatory practices still exist though they are more discreet. Cite one or more Internet sources in your initial response.

Are there any additional laws or guidelines that can be created to increase the protection of employees against further acts of religious discrimination?