1.   Protesters who dramatise their grievances by holding innocent people hostage, to which blocking traffic can be compared, must not be tolerated.

2.   Roadblocks are a common form of protest in Greece but police rarely use force to disperse those blocking traffic.

3.   Thick crowds formed in front of retail stores, spilling into the street and blocking traffic, as customers awaited delivery of new goods, the Sunday Star reported.

4.   This week, nine people were arrested after blocking traffic in Harvard Square to protest what they said was slow progress in negotiations.

5.   Despite their blocking traffic, there was no intervention by heavily deployed anti-riot security forces.