Who really bombed the Nordstream pipelines?

Months after the bombings of the vital Nord Stream pipelines, it remains unclear who was behind the operation. While both Russia and the West have accused each other of ordering this attack, two new investigations have made bombshell revelations. Veteran journalist Seymour Hersh holds the US government responsible for the attack while a report in the New York Times believes that pro-Ukrainian groups may have been responsible. HT's Shashank Mattoo breaks down the controversy over the bombings. Mattoo breaks down the competing motivations and theories. He also takes a look at the findings of Hersh's report and the suspicions of the US intelligence establishment.