The first picture looks like a particularly dangerous and violent volleyball game, in which the net is electrified and the balls change from rocks to tear gas canisters depending on who is serving:

Atef Safadi / EPA

A Palestinian youth protester lobs a rock at an Israeli soldier standing on the other side of the fence, during the weekly proteste against Israeli-built separation barriers in the West Bank village of Billin, on Jan. 7. The protesters also commemorated the death of a Palestinian protester Jawaher Abu Rahmah from the village of Billin, who died after inhaling tear gas on Dec. 31. The cause of death is disputed.

Abbas Momani / AFP - Getty Images

Israeli soldiers disperse protesters in Bilin.

Abbas Momani / AFP - Getty Images

Israeli soldiers fire tear-gas grenades at protesters.

Mohamad Torokman / Reuters

A Palestinian woman throws a stone towards Israeli soldiers.

Palestinians in Bilin have protested the West Bank separation wall every week for six years. Yesterday, The New York Times' The Lede Blog rounded up the reporting, charges and counter-charges around the use of tear gas by Israeli troops and the Dec. 31 death of  Jawaher Abu Rahmah, whose brother was killed at a 2009 protest after being struck by a tear gas canister. Palestinians, and some Israeli bloggers and newspapers are protesting the potential lethality of tear gas being used against protesters. Read the post here.