Heart Danger in Diet Drinks

I went to the abstract of the article itself and didn't get the same impression. So if the full article says that I'd be surprised.
Article abstract here:
http://www.springerlink.com/content/600075863470145h/
Sensational article here:
http://www.express.co.uk/posts/view/299327#comments
One can of diet fizzy drink a day can dramatically increase the risk of a stroke or heart attack, a study has revealed.
correction here:
http://oc1dean.blogspot.com/2012/02/diet-soda-linked-to-faulty-scientific.html