Joseph Dana writes: Residents of Nabi Saleh in the West Bank have been demonstrating, each week for the past two years, against the slow encroachment on their land by Israeli settlers.

Gathering in the village centre on Friday afternoons, villagers along with Israeli and international activists attempt to march, under the watchful eye of soldiers, to a disputed agricultural spring which was confiscated recently by Israeli settlers.

Often protesters never even reach the edge of the village; crowd-control measures by the military regularly include barrages of tear gas and rubber bullets.

Palestinian villagers claim that hundreds of protesters have been injured, some seriously, in the Nabi Saleh demonstrations.

But no one had been killed there – until last week.

The death of 28-year-old Mustafa Tamimi may seem to have little in common with the more numerous deaths of protesters in Cairo over the past few days.

Indeed the demonstrations are different from each other in many ways. But in protests from Tunis to Cairo to little Nabi Saleh, the use of tear gas by authorities, and the increasing number of related fatalities, has become a common thread in recent months.