The immune response to viral infection comprises innate and adaptive defenses. The innate response, which we have discussed previously, functions continuously in a normal host without exposure to any virus. Most viral infections are controlled by the innate immune system.
The original Ku Klux Klan was organized by ex-Confederate elements to oppose the Reconstruction policies of the radical Republican Congress and to maintain white supremacy..
In outright defiance of the Republican-led federal government, Southern Democrats formed organizations that violently intimidated blacks and Republicans who tried to win political power. The most prominent of these, the Ku Klux Klan, was formed in Pulaski, Tennessee, in 1865. Originally founded as a social club for former Confederate soldiers, the Klan evolved into a terrorist organization.