new this morning, we're learning the following weeks of public pressure facebook is considering some changes in its policy on political ads. cnn's doney o'sullivan has learned the social media giant is looking at ways to limit how political ads can be microtargeted to voters. also discussion of facebook tweaking their design of the ad so they're more prominently labeled. on the flip side, twitter announced a ban of political ads as facebook continues to say, though, that it will not fact check political ads. "the wall street journal" reports that google is weighing changes to how it handles political ads. the important takeaway, facebook is changing some of the ways ads will be delivered but not changing the policy that you can advertise fake things. that's important. >> yes, i think they may want to tweak that. also breaking news, the woman who went viral after climbing into the lion exhibit at the bronx zoo has been arrested.