War is being waged all across the country against the invasive plant and animal species - some 50,000 of them - now spreading across the U.S.

I live in a dumb house. Which is not to say that I don't love its quirky charm, its drafty windows and leaky fireplaces and an electrical system that protests when too many people are trying to vacuum and microwave at the same time. But charm is not always user-friendly.

While many alien species are harmless, others pose expensive threats to seas and fields and forests.

Nancy Gibbs Quotes