The incident, Aug. 4 -- SINGAPORE - Robert Del Naja and Grant Marshall were heading offstage when Singapore police closed in. The two founding members of Massive Attack, who had just played the final night of their residency at the Marina Bay Sands Expo and Convention Centre, were separately detained, their hotel rooms searched and their passports temporarily confiscated. Their act was raising the flag of Palestine.

at what point does holding a flag become a threat to public order?

Singapore Police confirmed Monday that officers had responded to a complaint about an act that "could potentially harm the racial and religious harmony" of the country. Under Singapore law, the public display of a foreign national emblem without a permit is p...