States across the US are turning school phone bans into law. Charlotte Alter of Time Magazine joins CNN's Audie Cornish to explain how parents and educators are driving this shift. | CNN

She reluctantly spent her spring break volunteering at a homeless shelter. The connection she made with one young child there inspired her to help thousands find permanent housing. Get the full story on CNN Hero Brandi Tuck and Path Home: https://bit.ly/3J5itI1 | CNN Heroes