Harvard University late last week announced it was punishing a professor who gave convicted sex offender Jeffrey Epstein unfettered access to the program he oversaw. Martin Nowak, a professor of biology and mathematics who led Harvard’s Program for Evolutionary Dynamics (PED), is barred from starting new research or advising students for at least two years. Nowak will still be allowed to teach during that period, but other contact with students will be limited and his research center is being shut down, according to a memo from Claudine Gay, dean of Harvard’s Faculty of Arts and Sciences. A review completed last year found Epstein, who helped establish PED with a $6.5 million donation, was given a keycard and passcode to gain entry whenever he liked to the program’s offices, despite his 2008 guilty plea of soliciting a minor for prostitution. His “assistants” were also given unfettered access to the facility. The arrangement was “easier” because …