http://www.theatlantic.com/politics/archive/2013/07/you-wont-believe-what-the-government-spends-on-confederate-graves/277931/

'I spoke in 2003 with the historian and ethicist William Lee Miller, who died last year, after he had written an "ethical biography" of Abraham Lincoln. When I talked to Miller, he was full of bile on the topic of neo-Confederates: he'd recently attended the Richmond, Virginia, dedication of a statue of Lincoln where someone had flown a plane overhead towing a banner with the message, "Sic semper tyrannis" -- the phrase John Wilkes Booth said that he'd shouted as he shot Lincoln. (It's also the commonwealth's motto.)

Miller was appalled to hear that the VA was funding Confederate memorials and providing headstones for soldiers. When I asked whether Lincoln would have supported providing these headstones, he responded with a firm, "No. These were people who shot at and killed Americans."'