By Shamindra Ferdinando in The Island, Sept 28, 2023Chairman of the Parliamentary Oversight Committee on National Security, Rear Admiral (retd.) Sarath Weerasekera has told Speaker Mahinda Yapa Abeywardena that the US should not deny a visa to an MP nominated by the Sri Lankan Parliament to join an official delegation unless he/she posed a threat to US interests. In a letter dated 25 Sept., 2023, the former Public Security Minister has informed Speaker Abeywardena the…