Nvidia becomes the world’s most valuable company

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Chip-maker Nvidia has become the world’s most valuable company after its share price climbed to an all-time high. It is now worth $3.34tn with the price having nearly doubled since the start of this year. Also, Devina Gupta takes a look at President Joe Biden's new policy that is likely to change the lives of tens of thousands of migrants married to US citizens, and finds out why stock exchange workers are going on strike in Italy.