Everyone gives Science, Cell and Nature way too much credit. They are flashy, but tend to have less substance than other journals. Their retraction rate is also much higher.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3187237/figure/F...
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3187237/figure/F...
Apparently the paper was in review for 9 months, which suggests at least two back-and-forth discussions between reviewers and authors. If there was that degree of misbehavior suggested, I would probably give the editors and reviewers a pass. Their job is not to detect outright fraud.