Dhaka, June 17 -- Less than 100 metres (328 ft) from a busy road, policemen stand on watch behind a pair of rust coloured gates that lead to a cemetery in the outskirts of Jaffna, the capital of Sri Lanka's Northern Province.The officers are guarding Sri Lanka's most recently unearthed mass grave, which has so far led to the discovery of 19 bodies, including those of three babies.The discovery of the mass grave has reopened old wounds for Sri Lanka's Tamil community, which suffered the worst violence of the island's 26-year civil war between the Sri Lankan government and the Liberation Tigers of Tamil Eelam (LTTE), a group that was seeking a separate homeland for Tamils.Many Tamils were forcibly disappeared by the state, with a 2017 repor...