for the "pbs news hour," i'm reza sayah in tehran.esident biden met israeli president isaac herzog and reaffirmed his, quote, "ironclad commitment" to israel. much of the administration's focus now is about humanitarian aid in gaza. but they also discussed the israeli hostages still held by hamas. nick schifrin is back with more. nick: it has been 403 days since october 7, 2023, when more than 250 men, women and children were abducted from israel and taken to gaza. the israeli government says hamas is holding 101 hostages in gaza. and, today, herzog says, while the day after the war was important, the war would continue until the hostages return home. isaac herzog, israeli president: clearly, you're thinking and working about the day after as well, which perhaps should be a trajectory of hope to the people of the region and the ability to have our neighbors, as well as us, live in security and peace. but, first and foremost, we have to get the hostages back home. pres. biden: i agree. nick: one of the most devastated communities on oc