On June 10, The Cato Institute's Michael F. Cannon responded to a story about “illegal immigrants helping to clean up the oil” by joking “I hear they're very absorbent” on his Twitter page. The post appears to have since been deleted:

H/T Think Progress

Previously:

Cato's health care expert Cannon weighs in on reconciliation (NSFW)

Update: The Washington Post's Dave Weigel writes that Cannon was “joking about what he sees as craziness in Louisiana,” in response to “a local Louisiana sheriff fretting that undocumented workers might bring a 'criminal element' to the gulf if brought in for oil spill cleanup.”