A Hawaii defense contractor who has donated to U.S. Sen. Susan Collins and whose business operates in Maine faces federal charges alleging he defrauded the Paycheck Protection Program, the small business loan program championed by the senator.Martin Kao, the CEO of Martin Defense Group, formerly known as Navatek LLC, allegedly inflated the number of his employees his business had and how much they made to get a $10 million loan, then deposited $2 million into his personal bank account, according to a criminal complaint filed in U.S.