Booster shot demand - Iraqi PM assassination attempt - Asteroid collision defense

More than 21 million people have already received a booster in the short time they've been widely available, according to the CDC website. And more than 786,000 are getting boosters every day now on average. That's nearly triple the number coming in for their first shots, though the rollout to kids under 12 could potentially change that equation.
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The same people who rushed to get their first jabs are apparently just as eager for their third. But some worry the focus on boosters has distracted from the more important goal of vaccinating the tens of millions of people who are eligible but still haven't gotten vaccinated. Over 222 million Americans, or 67% of the population, have gotten at least their first shot.
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The latest CDC data shows that almost everyone who got the Pfizer or the Moderna vaccines originally are sticking with the same brand. But only about 18% of those who got the J&J went with that vaccine as a booster. That's after research showed one of the mRNA vaccines seems to do a much better job pumping up the immune system.