Holding that for purposes of a Title VII retaliation claim, "an action is cognizable as an adverse employment action if it is reasonably likely to deter employees from engaging in protected activity"
Holding that where a supervisor makes sexual overtures to employees of both genders, or where the conduct is equally offensive to male and female workers, the conduct may be actionable under state law, but it is not actionable as harassment under Title VII because men and women are accorded like treatment