The content of school textbooks is often an issue of debate , since their target audience is young people . The term whitewashing is commonly used to refer to revisionism aimed at glossing over difficult or questionable historical events , or a biased presentation thereof . The reporting of military atrocities in history is extremely controversial , as in the case of The Holocaust ( or Holocaust denial ) , Bombing of Dresden , the Nanking Massacre as found with Japanese history textbook controversies , the Armenian Genocide , the Tiananmen Square protests of 1989 , and the Winter Soldier Investigation of the Vietnam War
The Holocaust
The Holocaust
Censorship