CIFWatch has an very informative article from Israelinurse, who went to the IDF briefing yesterday at the Lebanese border.
The posting includes a high-res photo of the entire area (click to enlarge):
And if my guess is right, the tree-pruning happened where I drew the arrow:
This shows that the Lebanese were much closer to the IDF than it looked before, and also that they are on significantly higher ground,which could be seen from the video I had posted as well.
You can also see that there is a fence on the Lebanese side as well, adjacent to the road: