For anyone interested in Smart assistants such as the Google Home or Amazon Echo the BBC News show Click heavily focuses on Smart assistants.
The piece raises some interesting questions regarding the security of trusting such devices for controlling the home environment. The piece also raises the potential that as the services increase their knowledge about you that they will start tailoring prices for items you purchase using voice assistants. This really that far fetched. Amazon has fallen foul of this several times in the past.