U.S. intelligence believes that more than 25 countries have or are acquiring weapons of mass destruction and their delivery systems.

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President Obama welcomed these developments while acknowledging that much work still remains to be done to counter the spread of weapons of mass destruction and their means of delivery in the region.

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The United States and Poland also emphasized the continued need for practical actions to prevent the spread of weapons of mass destruction (WMD) and their delivery systems to states of proliferation concern and to terrorist groups.

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"Researchers hope that European manufacturers will be able to take delivery of candidate vaccine prototypes in the coming months so preliminary steps to mass vaccine production can begin, " the statement said.

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For a start, the order-to-delivery time is very long, up to two months, much longer than customers for true mass-market cars would be prepared to wait.

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Similarly, when news was distributed using expensive printing presses and delivery trucks, only a small minority of the population had the opportunity to communicate with a mass audience.

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