If there is an epidemic, infection, so in that condition, first of all what is the necessity? First thing is to disinfect the epidemic. In the infected area you cannot derive any benefit by discussing morality or immorality: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.