And Canadian PM Justin Trudeau splits with wife Sophie after 18 years. Justin and Sophie Trudeau in Hamburg in the early days. Top of the morning this Thursday – here's our summary of the main business and politics headlines from around the world overnight. Top economists have been out trying to hose down stock market jitters after ratings agency  Fitch downgraded the United States' long-term credit rating, the first Want to read more? It's easy. Choose your best value subscription option Get two weeks free access to NBR's Premium Online Subscription, which includes full access to all of NBR's great content on any device.

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