KEY POINTS:
A foul-smelling package that led to the evacuation of a post office next to Washington's Smithsonian National Postal Museum contained two cans of spinach and a dirty diaper, authorities said.
A postal worker alerted police after spotting the smelly package on a counter with no one around to claim it.
Police bomb technicians x-rayed it and a hazardous materials team inspected it before determining that it contained nothing dangerous.
