but i m still not hearing from you what is it the a.t.f. can do to stop this epidemic of mass shootings. our cbs news investigation, the diduvalde gunman bragged to fris about getting an assault rifle after his 18th birthday. are gun manufacturers marketing militari grade weapons to at risk young men? american adversaries united vladimir putin meets with the iranian leader after iran promises drones to russia. plus, great news for those toys r us kids. and america s favorite past time, honoring a member of america s greatest generation. this is the cbs evening news with norah o donnell, reporting from the nation s capital. o donnell: good evening, and thank you for joining us on this very warm tuesday night. tonight, the heat is on across much of the country, as the scorching hot summer imrips the nation grips the nations. brutal temperatures are felt from california to massachusetts. more than 120 million americans are under excessive heat warnings or advisories w