Facebook, Twitter, Subway: Everything that matters this morning

Facebook denies targeting teens who feel ‘useless’
Facebook has denied it is targeting insecure young people in order to push advertising, amid a row over a leaked document.
A research paper, reported on but not published by The Australian newspaper, was said to go into detail about how teenage users post about self-image, weight loss and other issues.
The document said Facebook had the ability to monitor photos and other posts for users who may be feeling “stressed”, &ld