ms. ahmed's beverage request regarding a can of diet soda. the company met with ms. ahmed to further discuss the matter. tahrir ahmed told san jose she hoped it didn't get an increased light of. >> i was hoping they would use it as a teaching moment, acknowledge it and recognize that it's wrong. we have many other circumstances in this country where our african american brothers and sisters and other minorities are really in a lot of pain and suffering and i think united could have really used this as an opportunity orecognize discrimination, when it happens and really you know use corrective opportunities. >> a new skin cancer treatment is being described as a once in a generation advance. scientists say the results of a trial of the new combination drugs are spectacular. in the u.k. trial more than half the patients with advanced melanoma have seen their tumors shrink. charlie angela has more details. >> when pam smith was diagnosed with skin cancer she was terrified she wouldn't live to see her grandchildren grow up. she chose a combination of new drugs being trial