Question: WNP-3 and WNP-5 were constructed by the agency formed in which year?
Sentence (from "Energy Northwest"): Headquartered in Richland, Washington, the WPPSS became commonly known as "Whoops" due to over-commitment to nuclear power in the 1970s which brought about financial collapse and the second largest municipal bond default in U.S. history.
Relevant evidence: No