MUMBAI: Nuclear scientist Dr Anil Kakodkar's speech in favour of the Jaitapur N-plant, scheduled for Tuesday in Ratnagiri, has been cancelled following threats by the Shiv Sena. Sena CEO Uddhav Thackeray saw nothing wrong in the Sainiks' threat to Kakodkar. "In fact, the Jaitapur nuclear plant is a threat to all of us. Who will take responsibility if something goes wrong in the power plant," he asked. Uddhav was speaking informally to mediapersons on the sidelines of a party function in Mumbai. "Dr Kakodkar's pro-Jaitapur speech will not be allowed on the soil of Ratnagiri," said local Sena MLA Rajan Salvi. Emboldened by its victory in the civic polls, Sena has begun to flex its muscles, say observers. The Sena is keen on consolidating its Ratnagiri bastion in view of Congress minister Narayan Rane's support to the N-plant. Kakodkar said the organizers of his Ratnagiri speech informed him that his address has been cancelled.