The article is even titled "Leak".

"The radiation leak that began in the WIPP disposal chamber half a mile below ground on 14 February, 2014, “did not result from a detonation,” the report showed."

"Spewed" was interjected by the author. Typical reaction on the author's part as well as yours with a bent toward sensationalism.

I'm still waiting for the report on how the protesters broke camp...