Hello and welcome to the Intelligence on Economist Radio.

I'm your host, Jason Palmer.

Every weekday, we provide a fresh perspective on the events shaping your world.

Egyptians see the life-giving Nile River as a gift from God, their birthright.

Problem is, so do the Ethiopians upriver.

As an enormous new dam takes shape in Ethiopia,

negotiations on how to manage water flow are proving damn hard to resolve.

And, for many adventurers, all that back-to-nature stuff is Pass-A.

Our correspondent heads out with the urban explorers of England's abandoned buildings.

New planning law proposals mean that these derelict sites and an obsessive hobby are at great risk.

First up, though.

On Monday, police in Hong Kong marched through the offices of a local tabloid called Apple Daily and arrested its influential owner, Jimmy Lai.

He was charged with colluding with foreign forces, a crime that carries a potential life

sentence.

Agnes Chow, a prominent youth activist, and eight others were also arrested under the same law.

All were released on bail yesterday.

The arrests confirm the fears of pro-democracy campaigners that Hong Kong's freedoms

are disappearing.

On July 1st, the territory's chief executive, Kerry Lamb, unveiled a new national security

law imposed by Beijing.

Activists worried about a broader clampdown on a city that has recently seen so much feverish activism, protests and riots.

But Mrs. Lamb promised Hong Kongers would still be free to express themselves.

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