The fundamental problem is that cancer is an enormously complex, unpredictable evolutionary process characterized by extreme genetic and epigenetic diversity that occurs within the patient.

FORBES: Cancer's New Era Of Promise And Chaos

But fat is also a fundamental, necessary component of the human diet, and only one piece of the complex dietary puzzle.

FORBES: Taxes On 'Fatty Foods', And Their Unintended Consequences

The review also found a "fundamental problem" with accountability and governance arrangements of the ambulance service which it describes as "complex and lacking in clarity".

BBC: Welsh ambulances: ?9.5m upgrade for fleet