Also by Kumi Naidoo

Our office in Istanbul has been under siege. It is in the heart Taksim, an area in which a brutal police clampdown has been trying to end the peaceful protest over the planned destruction of the small, and historic, Gezi Park by Taksim Square. The protest has grown to involve tens of thousands of people and drawn the support of people from all over the world.

More than 150,000 people came to London last Saturday to protest against austerity measures and march for A Future That Works. The rally was organised by the Trade Union Congress, the national trade union centre in the UK representing the vast majority of organised workers.

Kumi's blog was originally published by IPS, before the Istanbul summit took place.

Disruptive diplomacy may be the only way out of the Iran-Israel nuclear crisis, the only way to pierce the hegemony of hypocrisy dominating the power politics of nuclear weapons control, of those who have them, and of those who are accused of developing them.

Otherwise, this weekend's meeting on Iran's nuclear programme is likely to be yet another missed opportunity, yet another exercise in futility.

The environment and the world have a new hero, a reluctant hero perhaps, but someone who in good conscience could not stand by and watch a grave injustice take place without trying to prevent it. Without taking a stand at a risk to his own liberty. His name is Tim DeChristopher, and he joins the pantheon of brave men and women who have made a difference – brave men and women whose actions ricochet and multiply into widespread social change.