INSIGHT-SOS: Stranded and shattered seafarers threaten global supply lines Reuters 13 hrs ago * COVID curbs leave 100,000 commercial seafarers stranded at sea * Another 100,000 are stuck on shore, unable to earn a living * Only 2.5% have been vaccinated, shipping body estimates * Shipping industry turmoil could threaten global supply lines (Adds latest IMO figures on key workers classification) By Jonathan Saul and Roslan Khasawneh LONDON/SINGAPORE, July 20 (Reuters) - "I've seen grown men cry," says Captain Tejinder Singh, who hasn't set foot on dry land in more than seven months and isn't sure when he'll go home. "We are forgotten and taken for granted," he says of the plight facing tens of thousands of seafarers like him, stranded at sea as the Delta variant of the coronavirus wreaks havoc on shore.