51.   Because the exhumations continue, officials of both the United States and Mexico have shrouded the investigation in secrecy.

52.   Berger said Wednesday that the commission would put other cases aside to complete a preliminary investigation in two months instead of the usual six.

53.   Both seem to enjoy a tacit immunity from concerted criminal investigation in Mexico and the United States.

54.   Both suits involved an arcane accounting practice known as cost reporting, which has been at the center of widespread criminal and civil investigations in the hospital industry.

55.   Brand said Coelho began cooperating with the investigation in November and had provided bank records as recently as January.

56.   A copy of the notification to the court initiating the preliminary investigation in that matter is also enclosed.

57.   A Defense Department investigation in July concluded that several avoidable errors caused one of the worst self-inflicted losses in American military history.

58.   A few months later, Richichi came under investigation in a separate case, this time for conspiracy to commit tax fraud.

59.   A grand jury investigation in Washington is ongoing.

60.   A recent investigation in Washington over whether American aerospace companies aided Chinese rocket makers has brought the Boeing venture and similar endeavors under close scrutiny.