From the News Wire: Pfizer Warns of Lung Cancer Risk on Inhaled Insulin

Hmmm isn't this what everyone was asking about all along?

NEW YORK - Pfizer Inc. said on Wednesday clinical studies of its insulin
drug Exubera found increased cases of lung cancer, leading developer Nektar to
abandon the troubled product.

http://www.ibtimes.com/articles/20080409/pfizer-nektar-exubera-insulin.htm