== Required attribution to DOE == 

 A series of substantial edits in 2013 seems to have introduced content from US government websites. For example, this has content from . This has content duplicated at . 

 I checked to see if the copying here was reverse as well - it does happen - but this suggests not: 
 :Content added at includes the following: 
 :::"The plant site is located in a predominantly rural area on the Wabash River outside of West Terre Haute, Indiana. PSI’s Wabash River Station was originally a mine mouth plant, and most of the new facility is built over land which was previously shaft-mined in the early 20th century. The site is bounded by the Wabash River to the east, woodlands and agricultural areas, a reclaimed strip mine, and residential areas 0.2 miles to the southeast and 1.5 miles to the north. Downtown Terre Haute is about eight miles south and there are no nearby wilderness areas or national or state parks." 
 :This content, with other content added in that edit, is found at http://www.netl.doe.gov/research/coal/energy-systems/gasification/gasifipedia/wabash. 
 :Some of the text was removed less than 10 minutes later [https://en.wikipedia.org/w/index.php?title=Coal_gasification&diff;=next&oldid;=564823632 at 18:33, 18 July 2013. 
 :This would have given the external site a very narrow window to copy that content. 

 For that reason, it seems pretty clear that the content was copied from these government pages, and more than just identified above. Wikipedia permits copying of public domain and compatibly licensed resources but requires full attribution, including acknowledgement of copying. Please see Wikipedia:Plagiarism. I have added a general attribution template -  - but it is more within keeping with Wikipedia's policies to attribute specifically the pages from which content is copied than to generally reference it in this way.