In case anyone is in any doubt about the volatile situation many of our staff and stringers work under in Afghanistan I want to recount what happened on Saturday. Ahmad Nadeem was covering a demonstration that was sparked by the actions of extremist Christian preacher Terry Jones, who, according to his website, supervised the burning of the Koran in front of about 50 people at a church in Florida. The mood at the demonstration changed very quickly as the crowd sought a focus for their anger. Ahmad, our stringer in Kandahar was targeted. He was beaten with sticks, his gear smashed and his hand broken. Then an armed man instructed the mob to kill him. Ahmad fled for his life escaping into a nearby house where he successfully hid from the mob. Earlier in the day a suicide attack also hit a NATO military base in the capital Kabul, the day after protesters overran a U.N. mission in the northern city of Mazar-i-Sharif and killed seven foreign staff in the deadliest attack on the U.N. in Afghanistan.

AFGHANISTAN-VIOLENCE/KABUL

Bullet holds are seen on the windshield of a car used by insurgents after an attack at Camp Phoenix in Kabul April 2, 2011. Insurgents clad in burkhas attacked a coalition base in Kabul with guns and rocket-propelled grenades on Saturday, but were killed either when they detonated their explosives or by Afghan or coalition fire outside the entrance, NATO and police said.    REUTERS/Ahmad Masood

AFGHANISTAN/

Afghans chant anti-American slogans during a demonstration to condemn the burning of a copy of the Muslim holy book by a U.S. pastor, in Mazar-i- Sharif April 1, 2011. Afghan insurgents used mass protests against Koran burning as cover to launch an attack on the United Nations building in northern Mazar-i-Sharif city, in which at least seven foreigners were killed, the governor of Northern Balkh province said. The United Nations death toll in an attack on the U.N. compound in the northern Afghan city of Mazar-i-Sharif could be as high as 20, U.N. officials told Reuters on Friday. REUTERS/Stringer

AFGHANISTAN-VIOLENCE/KABUL

A U.S. soldier (R) keeps watch as the body of an insurgent lays on the ground after an attack at Camp Phoenix in Kabul April 2, 2011. Insurgents clad in burkhas attacked a coalition base in Kabul with guns and rocket-propelled grenades on Saturday, but were killed either when they detonated their explosives or by Afghan or coalition fire outside the entrance, NATO and police said.    REUTERS/Ahmad Masood

The nuclear and tsunami story in Japan is also presenting an interesting set of challenges for the photographers. The reactor is now leaking radiation into the sea with two radioactive hotspots identified to the north west of Fukushima City. The leaks in the reactors are neither better nor worse - so how close would you want to get to take a picture?  If you want to help and get really close you can get a job with TEPCO as a "Jumper" and get paid $5000 and go right inside the reactor.  We of course would be more than happy to see pictures shot by a "Jumper" and the team at work. At the scene of tsunami devastation the US and Japanese military are now searching the sea for the thousands of missing bodies as the survivors try to piece together their lives, the images of this daily struggle no less powerful even though the story is now three weeks old. What was amazing to me how much dignity and respect ooze from Kato-san pictures as the Emperor and Empress visit one of the evacuation centres. For the rest of the pictures I will let them speak for themselves, words will add nothing.