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president biden on his way to the site of a legendary act of american heroism. when army rangers scaled to cliffs the president gives a speech defending freedom and democracy. we'll cover it for you live from a beautiful day in normandy, france again. from arizona last night, watch. >> he has totally lost control over the border and it is a real' dangerous place. he is conceding death and he is conceding defeat at the border. a deliberate demolition of our sovereignty and border. somehow somebody will explain to us why they would want this to happen. i guess it's probably votes. they...

>> gillian: a new study finds excessive internet use my harm teenagers' brains and change its structure. they had disruptions in the parts of the brains involved in executive functionings. researcher say it may lead to problems with attention span, impulse control and decision making. dr. siegel, this is interesting. a study that doesn't just focus on social media like we talk about all the time. this is internet use at large. they defined used these criteria to make a clinical diagnosis for teen addiction to the internet. take a look. one's persistent preoccupation from the internet. withdraw...