“It’s a hard three letters to absorb,” admits Charlie Sheen during his TODAY interview with Matt Lauer.  Sheen found out he was HIV positive four years ago after ending up in a hospital, extremely ill, believing he was dying of a brain tumor.  Since his diagnosis, Sheen has always been honest with partners about his condition and uses protection, but many of these partners appallingly blackmailed Sheen for money to keep quiet.