announcer: this is nbc nightly news with lester holt good evening, everyone it was an encouraging sight for american families who had been hard pressed to find infant formula for their babies pallets and pallets of formula, 35 tons, arriving in the u.s. from europe aboard a military transport plane, enough to feed 9,000 babies and 18,000 toddlers for one week but the math doesn t yet add up to full store shelves. with 43% of formula supplies nationwide out of stock tonight the biden administration moving on several fronts, including another military shipment planned for later this week to try to ease the shortage but relief may still be some weeks away, leaving frustrated and anxious parents further on edge. jo ling kent has late details. reporter: when the first emergency aircraft for operation fly formula landed, it delivered a sign of hope, alongside growing nationwide panic. everything is empty. i don t know about y all, but this is scary. reporter: aboard
announcer: this is nbc nightly news with lester holt good evening, everyone it was an encouraging sight for american families who had been hard pressed to find infant formula for their babies pallets and pallets of formula, 35 tons, arriving in the u.s. from europe aboard a military transport plane, enough to feed 9,000 babies and 18,000 toddlers for one week but the math doesn t yet add up to full store shelves. with 43% of formula supplies nationwide out of stock tonight the biden administration moving on several fronts, including another military shipment planned for later this week to try to ease the shortage but relief may still be some weeks away, leaving frustrated and anxious parents further on edge. jo ling kent has late details. reporter: when the first emergency aircraft for operation fly