Switzerland's largest bank, UBS, has asked a US court not to go ahead with a tax case involving more than 50,000 US customers with Swiss accounts.

UBS told a federal court in Florida it would violate Swiss laws on banking secrecy if it provided the information on its clients.

The US suspects 52,000 Americans of using UBS accounts to hide almost $15bn of assets and unpaid taxes.

This has led to "systematic and severe constraints on Palestinian development of water resources", says the report.

But the Palestinian Authority (PA) too gets part of the blame. It is struggling to establish even a basic water infrastructure and management, concludes the report.

Water supplies continue to "operate in a very inefficient emergency mode, with far reaching economic, social and environmental consequences".