LOS ANGELES (AP) — As part of the crew digging a subway extension under the streets of Los Angeles, Ashley Leger always keeps her safety gear close by. When her phone buzzes, she quickly dons a neon vest, hard hat and goggles before climbing deep down into a massive construction site beneath a boulevard east of downtown. Earth-movers are diverted, and Leger gets on her hands and knees and gently brushes the dirt from a spot pointed out by a member of her team.