By Kane Wu, Laurie Chen and Eduardo Baptista BEIJING/HONG KONG/SINGAPORE, April 28 (Reuters) - China's blocking of Meta's acquisition of AI startup Manus will heighten the risk for global investors looking to invest in advanced tech firms with ties to the country amid Beijing's expansion of jurisdictional reach to safeguard strategic assets. The National Development and Reform Commission (NDRC), in a rare case, ordered on Monday that the $2-billion-plus acquisition by Meta be unwound under Beijing's ‌n ...