The link above leads to a very disturbing article about United. I am outraged that this could happen.
To deny a baby the right to eat because there is no bottle is discrimination. This mother would not have been harrassed in such a manner if she was using a bottle.
Nursing a child should not expose a mother to shame based on the bottle standard. You have no right to deny children comfort and food due to the complaints of other passengers. How can the comfort of an adult compare to the needs of a child?
Without an immediate statement of company policy which supports nursing moms, you should expect a flurry of outrage.