Close shot of blue and white cordon tape with the words 'Police' on it, fluttering in wind against blurred background

Sequence showing various views of the Thames Flood Barriers on the River Thames in London, including long view of the Millennium Dome and the gleaming steel roofs of the barriers in winter sunshine

Sharp spines poking out from a cactus' green skin, camera re-focusses to show more spines in the foreground.

A fighter jet takes off from USS John C Stennis air carrier at sea.

An armed guard carrying a machine gun guarding USS Forrest Sherman destroyer vessel. The guard walks out of the shot.

Afghanistan: Wide shot of five Canadian troops walking along a sandy path next to civilian housing. Back view of the legs and feet of a serviceman walking along rough ground. Three servicemen patrolling around civilian houses in Kandahar Province.

A Woolly monkey hides behind a thick branch, looking around suspiciously. It then moves onto a nearby branch, with its baby hanging from its back.

Silhouette of two Thames barrier structures in foreground on the River Thames at Docklands, London at sunset. Canary Wharf buildings can be seen in the background against an intense orange sky with bright sunlight reflected on the water

Louisiana, USA: Air to Air shot of a Blackhawk helicopter delivering sand for a breakwater.

Los Angeles, USA: LA skyline and its skyscrapers seen through a loop of barb wire.

Sharp spines poking out from a cactus' green skin.

Two unidentifiable lifeguards looking through binoculars from a lifeguard tower on Venice Beach, Los Angeles, California, USA.

Back view of a bodyguard in a black suit and an earpiece walking by a fountain.

Policeman's hat on counter in police station with back view of male British police officer standing at desk in background

A Woolly monkey climbs onto a thick branch. Its baby is clinging onto it. The monkey moves along the branch.

General view of line of Thames Barrier structures seen in silhouette on the River Thames at Docklands, London at sunset. Canary Wharf buildings can be seen in the far distance directly underneath a bright gleaming yellow sun which is reflected on the water. Approaching dark clouds fill the top of the screen

A Woolly monkey plays with the baby of another monkey. The baby is clinging onto its mother. The mother then wanders off with its baby.

A Woolly monkey scratches its leg. When it turns around, its baby is seen clinging onto its back. The monkey then crawls away with its baby attached to its back.

A Queen's Guard dressed in a grey overcoat and bearskin hat carrying a rifle fixed with a bayonet exits a sentry box outside Buckingham Palace in London, England. The guard swaps the rifle over from his right shoulder to his left, turns, and marches across to the left. Heavy snow blows across the scene.

Close view of top of barbed wire fence against clear sky with sunlight shining brightly in top left corner

Medium view of a Queen's Guard dressed in a grey overcoat and bearskin hat standing on sentry duty outside Buckingham Palace in London, England. The guard carries a rifle fixed with a bayonet. Heavy snow blows across the scene.

Sharp spines poking out of a cactus' green skin.

A Woolly monkey crawls along a branch. Its baby is clinging onto its side. The monkey sits down on the branch for a moment, then gets up to continue moving along the branch.

Soldiers with machine guns stand silhouetted against a glowing sunset.

Two adult Woolly monkeys sit on a thick branch. One of the Woolly monkeys plays with the baby of the other monkey. The baby is clinging onto its mother.

Back view of two British police officers walking along suburban street as traffic passes along road, policemen are wearing yellow reflective jackets and police hats