Whitewashing (communications)
Whitewashing is the act of minimizing or covering up vices, crimes or scandals, or of exonerating the guilty by means of a perfunctory investigation or biased presentation of data with the intention to improve someone's reputation. == Etymology == Whitewash is a white paint or coating of chalked lime that can be used to quickly give a uniform clean appearance to a wide variety of surfaces, such as the interior of a barn.
Source: Wikipedia — Whitewashing (communications) (CC BY-SA 4.0)