US issues 'wrongful detention' warning for China travel

• The US State Department added a 'D' risk indicator for wrongful detention to its China travel advisory.
• The advisory maintains China's overall advisory level at Level 2, 'Exercise Increased Caution'.
• This update follows the wrongful detention of two US citizens earlier this year.
• The advisory urges Americans to be aware of the risk of arbitrary detention under Chinese law.
• The warning comes amid complex relations between the US and China.