The funny thing is that he apparently gave 'that' interview years ago but didn't permit another magazine to publish it.
There's an article in the German magazine Der Stern this week in which they mention that Ullrich apparently gave a four-hour interview to them in 2008 disclosing all. However, after giving the interview he changed his mind and has up until now not allowed them to publish it.
The funny thing is that he apparently gave 'that' interview years ago but didn't permit another magazine to publish it.