Pale Jerusalem stone and narrow entryways are flanked by iron barricades and Israeli police officers scrutinizing passersby. But this is neither the British security zone in the final years of the Mandate over Palestine nor the tense Damascus Gate at the Old City during Ramadan, but a renovated courtyard in central Jerusalem that has, for the fifth consecutive week, become a battleground over the opening of the Basimta coffee shop on Saturdays.