The Great Smoky Mountains National Park received special funding this year to remove nonnative plants from 11 wetlands, a Knoxville newspaper reported. If left unchecked, invasive plants introduced here, often by accident — like Kudzu, a fast-growing Asian vine that now smothers some seven million acres in the south — will continue to overtake native species upsetting the delicate balance in America’s most visited National Park. (AP)