You Wonder What the Motivation Was?

You can never guard against people with bad intentions. USA Today had this report:

Baxter CEO: Heparin contamination appears intentional

WASHINGTON (Reuters) — The contamination of Baxter International's (BAX) blood-thinner heparin appears to have been deliberate, the company's chief executive said in testimony prepared for a congressional hearing Tuesday.

"We're alarmed that one of our products was used, in what appears to have been a deliberate scheme, to adulterate a life-saving medication, and that people have suffered as a result," Baxter Chief Executive Robert Parkinson said.

"We deeply regret that this has happened, and I feel a strong sense of personal responsibility for these circumstances," he said.