New York Subway Conducters @ Slate Magazine   Close, Personal Portraits of New York City Subway Conductors   In the mayhem of New York’s subway system, it’s sometimes easy to miss noticing the workers who make it run. Not so for Dutch photographer Janus van den Eijnden. On assignment in New York in 2008, he started photographing underground, following in the tradition of Bruce Davidson, whose photographs of the subway in the 1980s he admired. While Davidson’s work looks at