Is Walgreens committing a sin by selling condoms?

Is selling these a sin?

I ask the question because of this:

Thomas McKenna: “So a Catholic employer, really getting down to it, he does not, or she does not provide this because that way they would be, in a sense, cooperating with the sin…the sin of contraception or the sin of providing a contraceptive that would abort a child, is this correct?”

Cardinal Burke: “This is correct. It is not only a matter of what we call “material cooperation” in the sense that the employer by giving this insurance benefit is materially providing for the contraception but it is also “formal cooperation” because he is knowingly and deliberately doing this, making this available to people. There is no way to justify it. It is simply wrong.”

Responding to the comments, Giroux says, “This comment by a high ranking Cardinal is the clearest explanation to date on the issue of an employer’s culpability when providing contraception, sterilization, and abortion inducing drug options in the insurance plans for employees.”

So is Walgreens committing a sin by selling condoms? Anyone want to ask the bishops?