The New York Times reports:

The change in policy for fresh spinach and iceberg lettuce marks the first time the F.D.A. has allowed any produce to be irradiated at levels needed to protect against illness.

What this means:

Your fresh produce may be safer, but at the same time less nutritious and not as tasty. Depends on who you ask.

What to look for at the Supermarket:

It’s hard to find fresh produce that’s irradiated. That’s because the FDA requires labeling of fresh produce that has been irradiated. Consumers think its radioactive and stay away. So this new allowance will not have a big impact on most of us.