In March 2006 Mathis was a co-signatory on a letter, initiated by the Competitive Enterprise Institute, in support of an expansion of oil drilling in the Arctic National Wildlife Refuge.
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Mathis has been criticized for allegedly misleading evolutionary biologists PZ Myers and Richard Dawkins to get them to appear in the film.
Mark Twain | Mark | Mark Wahlberg | Johnny Mathis | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | Mark Waugh | Mark Rydell | Mark Goodson | Mark Owen | Mark Mothersbaugh | Mark Medoff | Mark Heard |
His brother, Mark Mathis was also a bombardier who had requested an assignment to the 303d Bombardment Group, at Molesworth, England; the same group as which his brother Jack was assigned.