Syrian President Ahmed al-Sharaa will use talks with Russian President Vladimir Putin to formally request that Moscow hand over Bashar Assad to face trial over alleged crimes against Syrians, two Syrian sources told Reuters on Wednesday. Sharaa, who once headed the Syrian branch of al Qaeda and who toppled predecessor Bashar al-Assad, a close Russian ally, late last year, was speaking at the start of Kremlin talks with Putin on his first visit to Russia since coming to power. Sharaa's visit was sensitive. Russia had used its military muscle to back Assad for years against Syrian rebels, and Moscow granted...