Answer:
1) There's an issue with the safety and aesthetic appeal of cell towers.
2) "Still more will be needed to eliminate "dead spots," places where cell phones don't pick up signals."
3) No, the author's argument isn't well constructed because in my opinion because they asked questions more than stating what they thought/their opinion. Instead, they should've stated their claim then have given evidence and explanations to their evidence like a good quality paragraph.
Explanation: