Gov: Thanks the public for staying indoors.
Gov: The stay-indoors request continues; keep doors locked unless a uniformed, identified officer on the other side.
Menino: We're a city that we're not going to let the terrorists take over.
State Police: We are progressing through this neighborhood, going door-to-door, street by street.
SP: On Norfolk Street in Cambridge, there will be a controlled explosion this afternoon.
SP Controlled explosion will be at a building that law enforcement wants to search.
Watertown Police Chief: to Watertown community - you've done great, but we need more time.
Watertown Chief: No law enforcement is going to leave until we have the area safe.
Press conference over; no questions taken.
From Amtrak: All Amtrak service is suspended NY to Boston indefinitely. Trains are currently operating as scheduled DC - NY.