The federal official in charge of a $250 million marketing blitz to build trust in the coronavirus vaccines' safety says the campaign will forego trying to convince so-called anti-vaxxers." Instead, it will focus on swaying those who are simply unsure about the new coronavirus inoculations. The U.S. Department of Health and Human Services calls the campaign's target group the "movable middle," said Deputy Assistant Secretary Mark Weber, who is overseeing the initiative. Sixty percent of respondents in a national survey conducted in November by the Pew Research Center said they would definitely or probably get vaccinated, while 39% said they "definitely or probably" would not. However, just under half of that group, 18%, said it's possible they could change their minds. That's the group the campaign needs to sway.