Anyone seen this work in PLOS One? Any insights?

Editorial Bias in Crowd-Sourced Political Information Joshua L. Kalla, Peter M. Aronow

"We report the results of four randomized field experiments that sought to explore what biases exist in the political articles of [Wikipedia]." [1]

AP writeup: "Researchers then added the facts to senators' Wikipedia pages and tracked whether they were removed." [2]

[1] http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0136327 [2] http://abcnews.go.com/Politics/wireStory/capitol-hill-buzz-polishing-senator...