How can what happened to the bees be connected to humans?

Jim Hickey lost half his broods after the attack. Geneticists warned about damage to future generations as a result of radiation. The bees were a future generation... their life spans shorter. The question was whaat the effect would be on the future of humans, also exposed to radiation.

"We shouldn't be surprised. Who can tell how much cesium 137 showered down on The Day? How much was carried into the upper atmosphere and has been filtering down since? The geneticists warned us of damage to future generations. Well, Hickey's bees are in a future generation."