Jane, stop this crazy thing!

The Moeller Flying Saucer and its big brother, the Skycar.

Capable of vertical take-off and landing, the craft hovers like a helicopter up to 10ft off the ground. Any higher and the driver would need a pilot's license.

It is the brainchild of Dr Paul Moller, an aeronautics engineer who envisions a "highway in the sky" which he believes could cut conventional commuter traffic in half.

"We have this wonderful natural resource above us," Dr Moller told the BBC.

"Look at the sky above us - how many aircraft do you see? It's a great space that is not being utilised. That is what we plan to use. Cars are finished as a means of getting around. It's only a matter of time."

The flying saucer is powered by eight engines which can run on petrol, diesel or even ethanol.

Dr Moller and his team have already conducted more than 200 test flights and say the flying saucer could prove useful to rescue teams as well as landowners.

It will sell for about $90,000 (£44,700) and the only question now surrounds licensing arrangements.

Moller International has yet to establish which US agency - the Federal Aviation Administration or the Department of Transport - will authorise its use.

It sees the flying saucer as a precursor to the M400 - otherwise known as the "Skycar" - which looks a bit like the Batmobile, also boasts vertical take-off and landing, and can be driven on the road as well as flown through the sky.

By the time the Skycar goes into production - probably in about six years time - it will be capable of climbing 6,000ft a minute and travelling at up to 400 miles an hour.

See it fly here.

How to cripple an industrialized economy - no bombs required

A suspicious package forced the closure of a terminal at Heathrow Airport and cancellation of over 100 flights.

The departure lounge has been partially evacuated

Heathrow Airport's Terminal 4 has reopened after a suspect bag sparked a security alert.

The Metropolitan Police said it was dealing with the item which was found at the terminal just before midday.

But thousands of departing passengers are facing long delays as airport officials begin re-screening them.

All international flights from the terminal were cancelled until the evening while all European flights have been cancelled until further notice.

The alert comes after failed terrorist attacks in London and Glasgow....

A spokesperson said: "We have had to cancel 108 flights in total.

"Our flights to and from Terminal 1 at Heathrow are operating, but with some delays."

Isn't that swell? But wait - there's more!

Earlier on Tuesday a controlled explosion was carried out on a suspect device near Hammersmith Tube station.

During the morning rush-hour the station in west London and surrounding roads were closed when a suspect device was found at about 0825 BST.

There was an unconfirmed report the suspect objects had turned out to be three abandoned fire extinguishers.

Up to 8,000 commuters were forced to find alternative routes into work as Hammersmith and Barons Court stations were closed for an hour.

There were also severe delays for motorists as Hammersmith Broadway was closed between King Street and Shepherd's Bush Road as well as Hammersmith Bridge.

What does it all mean? Well, it means that all the Islamofascists have to do to shut down Britain's capital is to leave knapsacks and briefcases casually unattended in airport terminals and at Tube stations. No bombs required: the extra precautions that these suspicious packages will trigger will shut down transport and cost the economy billions of pounds.