Hmmm true, I agreed number#5 is the best sentence to delete.
The paragraph talks about the invention of satellites and its benefits and its blockages.
"News used to travel overseas by boat and would take weeks or months to spread" is by no means wrong, but not effective to tell in paragraph.
It is what the question trying to ask.. making good flow.
One advantage of this technology is that current events can be sent worldwide instantly. When disaster struck the World Trade Center on 9/11, most of the world saw it immediately.
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