Asian stocks rack up steep losses after Wall Street shrugs off risks of widening conflict in the Middle East. Stock markets in the Asia Pacific have racked up steep losses after Wall Street earlier shrugged off the widening fallout of the US-Israeli war on Iran. Key indexes in Japan, South Korea, Australia and mainland China fell sharply on Tuesday as US-Israeli attacks on Iran and Iranian strikes on US allies in the region stretched into a fourth day. South Korea’s KOSPI, the best-performing index this year, saw the biggest losses, plunging about 6.5 percent in afternoon trading. Japan’s Nikkei 225 fell 3 percent, while Australia’s ASX 200 dropped about 1.5 percent. In China, the SSE Composite Index fell as much as 1.3 percent before making up much of its losses later in the day. Ai...