It's cost more than 1.5 billion pounds, taken 6 years to build - and today it finally opened. London Gateway is a new port on the north bank of the Thames, that will be able to handle the world's largest cargo ships.
When fully operational it will be the country's second largest port - and could bring thousands of jobs to the region. Our Political Ccorrespondent Simon Harris reports.
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The review will look at how the city would cope if multiple terror attacks were launched.
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