Telecoms expert: Vodafone selling at top of US market

Vodafone says talks about the sale of its 45% stake in Verizon Wireless of the US are "advanced" and it has put a value on the deal of $130bn (£84bn).

The company said last week that the talks were taking place and the sale is expected to be confirmed on Monday.

Sanford Bernstein telecoms expert Robin Bienenstock told BBC World why Vodafone were selling.