5 things to know for June 2: Primaries, gas prices, Kyiv attacks, ‘anti-weaponization’ fund, artificial intelligence

By Alexandra Banner, CNN Do you remember when airport goodbyes happened at the gate instead of the curb? A growing number of US airports are reviving that nostalgic tradition by allowing visitors to pass through security and walk loved ones to their gate, even without a plane ticket. Here’s what else you need to know