This interview was on EWTN earlier today.
Hit this link for the entire video, posted on the Catholic Action website.
Thomas McKenna interviewing Cardinal Burke
In the interview, Cardinal Burke addresses why a Catholic employer cannot, and should not be expected to, provide health care insurance that includes contraception and sterilization. He explains how this would be not only material cooperation in the sin, but also formal cooperation and for that reason there is no way to justify this implementation.