reportedly killing at least seven people and injuring dozens more. taliban fighters remain on alert at checkpoints across the country fearing further attacks. the security risks come as americans continue to flee afghanistan on sunday another qatary charter flight brought 21 u.s. citizens to safety. the state department confirmed over the past several days hundreds of foreign nationals have left kabul for doha, bret? >> bret: trey yingst in kabul, afghanistan, thank you. up next one vaccine maker says its shots are safe and effective for children as cases of adolescent cases surge. now the fda will dive into that data. >> we are still not where we need to be and for children to be able to grow up and have a full childhood. >> i sure hope that parents seeings the data and having the chance when fda has a public meeting will say yeah, this is something i want for my kids. ♪ ♪