Today there are about 40 million retirees receiving benefits; by the time all the baby boomers have retired, there will be more than 72 million retirees drawing Social Security benefits.
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If we intensify our efforts we can have a cloned baby within a year or two, but I don't know whether we can intensify our efforts to that extent. We're not really under pressure to deliver a cloned baby to this world. What we are under pressure to do is to deliver a cloned baby that is a healthy one.