TOKYO (Reuters) - As Japan struggles to stem the spread of a coronavirus within its borders, critics are asking, “Where’s Abe?” Japanese Prime Minister Shinzo Abe listens to IAEA Director General Rafael Grossi at the prime minister's official residence in Tokyo, Japan, February 25, 2020. Kimimasa Mayama/Pool via REUTERS Shinzo Abe, 65, Japan’s longest serving prime minister, has failed to take the