"Tackling the veil of secrecy surrounding the UK's network of tax havens would be a big step towards ending extreme inequality.
Several of the donors, MPs and financiers who have supported Cameron's rise to power have had links to the UK's network of tax havens.
A Women's Aid petition to save women's refuges garnered 38,000 signatures – and secured a £10m injection from the government to protect the network of safe havens.
But palm-oil companies and the Sabah state government in Borneo have agreed to a project to create wildlife corridors that will link forest areas and create a network of safe havens.
The City has exploited this remarkable position to establish itself as a kind of offshore state, a secrecy jurisdiction which controls the network of tax havens housed in the UK's crown dependencies and overseas territories.
Despite the name, the Panama Papers also show that the problem goes far beyond Panama, through a dark network of tax havens across Asia, Africa, the Americas and even inside the EU.
What we have to do is renounce and turn away from the offshore world and make the decisive and final break with all those whose tentacles reach and touch the subterranean network of tax havens and offshore finance.
Yet as a British MEP it has been a constant source of embarrassment to learn the central role played by the City of London and the UK's overseas territories in the network of tax havens that facilitate a tiny minority to live beyond tax law.
Second, most likely due to his twin vulnerabilities of a personal offshore inheritance and poor legislative record, he is careful to always be seen to "own" the issue; never on the back foot reacting, always proactive in hunting down the bad guys; even confronting our own union flag-flying network of tax havens with his recent "clampdown" agreement.
"Britain, which has responsibility for arguably the biggest network of tax havens in the world, needs to use all its considerable legal power and authority to ensure all the UK overseas territories and Crown dependencies which act as tax havens sign up," he said in an article for The Independent.
