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boundaries for their children. set boundaries for adolescents. set boundaries for teenagers on the use of phones. on use of social media. >> it's hard to protect them. >> on the use of everything. it's hard but it is -- it is a lot more important than so many other things. >> okay. we're over time here, though. we will revisit this. that does it for us this morning. it is so great that yasmin vossoughian is back with us, and she picks up the coverage right now. hey, everybody, good friday morning. i'm yasmin vossoughian at msnbc headquarters in new york city. we've got a lot happen...

Needs to know. >> reporter: he was make ago -- making a call to action for gun control legislation as well as a closer look at mental health services as well, yasmin, and those are moments he described after he says about 15 shots were fired in his classroom. >> unbelievable. jesse kirsch for us, thank you. all right, everybody, we got a lot coming up. president biden's new defense over his handling of that chinese spy balloon and what he tells nbc news about the future of u.s. relations with china. vice president harris also talked about that and the u.s. support for ukraine in a new interv...