Losses in Asian shares are deepening after US President Donald Trump's sweeping tariffs came into effected on Wednesday. Here's where major Asia indexes stand: Japan's Nikkei 225: -5% at 1:28 p.m. local time• South Korea's Kospi: -1.7% at 1:39 p.m.• Hang Seng Index: -1.6% at 12:40 p.m. US futures are …