so was her outrage all for show? >> sandra: plus the cdc looking into a heart risk in adolescents that could possibly be linked to covid vaccines. dr. marty makary will join us on that, next. ♪ ♪ traded with a touch. the gold standard, so to speak ;) over the years, mercedes-benz has patented thousands of safety innovations. crash-tested so many cars we've stopped counting. and built our most punishing test facility yet, in our effort to build the world's safest cars. we've created crumple zones and autonomous braking. active lane keeping assist and blind spot assist. we've introduced airbags, side curtain airbags, and now the first-ever rear-mounted front-impact airbags.