The 73-year-old Georgia man accused of masterminding a plot to buy explosives and weapons to target government officials asked a judge to release him on bond because he said federal charges accusing him of being a domestic terrorist are "overblown."

The appeal filed Tuesday highlighted Frederick Thomas' long service in the U.S. Navy and his history of heart problems and lung disease. Defense attorney Jeff Ertel said his client cannot even lift his arms above his head, let alone raise a rifle to his shoulder.

The filing says "Mr. Thomas has never harmed anyone in his seventy three years of existence."

Thomas and three other men, age 55 to 73, were denied bond last month by U.S. Magistrate Susan Cole. She said that despite their age, the four could still carry out attacks.