According to Facebook News, starting from November, we will be able to see any ad that page is running just by visiting the page regardless of the fact are we page’s target audience or not.
This makes me wonder, are we going to be able to spy on competitors ads and even see their target audience?
Other news they’re mentioning in the article is that political ads will be harder to approve, you’ll have to verify the identity and each ad have small sign “Paid for by…”
It would be cool if we could spy on target audience of successful pages… for now they said that will be available for political ads:
During this initial test, we will only show active ads. However, when we expand to the US we plan to begin building an archive of federal-election related ads so that we can show both current and historical federal-election related ads. In addition, for each federal-election related ad, we will:
Include the ad in a searchable archive that, once full, will cover a rolling four-year period – starting from when we
launch the archive.
Provide details on the total amounts spent.
Provide the number of impressions that delivered.
Provide demographics information (e.g. age, location, gender) about the audience that the ads reached.
That’s what I’ve could understand from their article now, maybe I misunderstood something, it’s late here and I’m pretty sleepy 
What do you think?