I GOT IT! FINALLY!!!
I noticed when I opened another news story with a video that:
- the actual size of the video was smaller than the one I was looking at earlier
- when I tapped the video ( so that the line that scrolls across can be seen) and noticed there was a volume button that was muted. I unmuted it and it worked.
However, when I went back to the other tab, where the video was much larger and stretched from left to right, I could only see the scroll bar and not the mute icon. Anyway, I just tapped at the far right and bottom of the screen, where I thought the button might be, and it worked. Mind you I was tapping all over that screen earlier and it didn’t work, but, thankfully it worked this time.
Thanks again for your help.