There's also no reason news services and streaming radio services can't already be accessible, and some certainly are.  The other issue would be that news services aren't one thing - there are news services in pretty much every country on earth, and then you can break it down to every state or province, and often each city.  The same for radio.  And they will each use different platforms, or sometimes their own.  In this case, I feel it would be worth any interested user researching what options are available from providers which are either local or which serve their interest.  And if the only option which meets what you want is not accessible, approach them directly to raise those concerns.  Fixing that would almost certainly be something a web accessibility consultant could help with (The web is so complex and ever changing that NV Access don't generally get directly involved individually with a company's site code).