four states sued North Carolina
... that in 2010, the US Supreme Court heard an original jurisdiction case in which four states sued North Carolina for refusing to return the money they had invested in a failed waste facility?
... that in 2010, the <a href="./Supreme_Court_of_the_United_States" id="mwMg" rel="mw:WikiLink" title="Supreme Court of the United States">US Supreme Court</a> heard an <a href="./Original_jurisdiction_of_the_Supreme_Court_of_the_United_States" id="mwMw" rel="mw:WikiLink" title="Original jurisdiction of the Supreme Court of the United States">original jurisdiction</a> case in which <b id="mwNA"><a href="./Alabama_v._North_Carolina" id="mwNQ" rel="mw:WikiLink" title="Alabama v. North Carolina">four states sued North Carolina</a></b> for refusing to return the money they had invested in a failed <a href="./Low-level_waste" id="mwNg" rel="mw:WikiLink" title="Low-level waste">waste</a> facility?