 Nyorai kupfuurira kweiyi ndima - Muna 2009, Tepper akabatana neCBS News Investigative Unit saChief of Investigative Projects. Nyaya dzake dzakaratidzwa paCBS Evening News, CBS this Morning uye 60 Minutes. Akapawo kuCBS News nhau dzeBoston Bombing, Newtown Massacre, uye kurwiswa kwegandanga muParis, Brussels, uye Nice. Muna November 2013, Len Tepper neboka rake rokutsvakurudza rakataurwa munyaya yePolitico kuti vaiva nemanyuko akanaka kwazvo mukati meFBI. 