BEIJING (AP) — China’s one-child policy, one of the harshest attempts at population control the world has seen, forced abortions on women, made sterilization widespread and led to baby daughters being sold or even killed, because parents wanted their only child to be a male. Now, experts say, the question is whether it was all necessary. China’s birth rate fell to record lows last year and its population has fallen for four years in a row, official statistics showed this week. Authorities,