For some -- Emmett Till, the Evers brothers, Martin Luther King, the Japanese Internments in the US, the Internments in Canada, Apartheid, the Killing Fields, Stalin's purges, the Armenian genocide, Hutus, Bosnia, Tutsis, Darfur -- the evils are too recent and even ongoing.

Even the Scots took a while to give up bitterness over the Jus Primus Nocte, Glendalough, the Clearances, and the rest.