In a qui tam False Claims Act action, the Court of Appeals for the Fourth Circuit affirmed summary judgment in favor of a contractor because the relator failed to establish alleged construction mistakes constituted FCA violations. The relator alleged his former employer falsely billed the government for deficient work in constructing the U.S. embassy in Baghdad. According to the relator, the contractor billed for substandard concrete work, used larger than specified rebar, did not build a perimeter wall to the required height, provided subpar security items, installed a substandard fire protection system, overstated the amount of work in its progress payment invoices, and requested final inspections knowing work was deficient.