National Public Radio: People in the business of weatherizing homes are expecting to profit from the new economic stimulus plan. The federal aid package sets aside $5 billion worth of spending for making homes and buildings more energy efficient. The idea is to save energy, create jobs — and even perhaps slow global warming. That’s good news for people like Malcolm Woolf, who runs the Maryland Energy Administration. It’s a small office with a small staff, and they’ve started a new program to train people …