Those who spoke on the condition of anonymity did so because they did not want to jeopardize their access to delicate information.
But one of Mr. Wang's shipmates, the 25-year-old passenger who spoke on the condition of anonymity, did speak cautiously about his situation.
Sam, who spoke on the condition of anonymity, did not know these jewelers.
The person familiar with the contacts, who spoke on the condition of anonymity, did not provide details.
The American officials, who spoke on the condition of anonymity, did not provide details to support their suspicions.
The officials, who spoke on the condition of anonymity, did not immediately provide details to support their suspicions.
The spokeswoman, who spoke on the condition of anonymity, did not give the stone's size, but described it as "beautiful and substantial".
A Labor Department spokesman, speaking on the condition of anonymity, did not challenge criticisms that the rules would transfer control of tips from employees to employers.
The sources, who spoke on the condition of anonymity, did not provide details about the incident but confirmed that police were called about 1 20 p.m.
Those with knowledge of the defects spoke on the condition of anonymity, as did others, because they were not authorized to discuss the matter.
Other family members, saying they feared retribution, agreed to speak only on the condition of anonymity, as did three witnesses from the Karz mosque.
