No he didn't, the AP did based on a whistleblower (followed by a 60 Minutes report.) He may have reported on it, but he didn't break it. He did however make a claim not reported by the anyone else that the US soldiers raped children, which no one else ever reported, then offered no evidence of said claim.
> US investigative journalist Seymour Hersh disclosed the torture scandal of Abu Ghraib 10 years ago.
> He was the first to describe in detail what was happening in Abu Ghraib, quoting from the Taguba Report, a secret, internal investigation by the US army about atrocities committed against the prisoners.
The article goes on to discuss how even though second hand accounts of abuses already existed, he was the first to get access to and disclose the report, giving a detailed first party account and giving proof of chain of command involvement for the first time.
