good morning, john. >> dickerson: good morning, mellody. after the u.s. about that with secretary of state rex tillerson and ten for john mccain as well. >> hobson: thank you. next week on "sunday morning." ♪ we tour the treasures of the vatican. it's kind of like "wait a minute, i would normally be running out the door to go grab a cigarette." along with support, chantix (varenicline) is proven to help people quit smoking. chantix reduced my urge to smoke. some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. some reported seizures or sleepwalking with chantix. if you have any of these, stop chantix and call your doctor right away. tell your doctor about any history of mental health problems, which could get worse or of seizures. don't take chantix if you've had a serious allergic or skin reaction to it. if you have these, stop chantix and call your doctor right away as some can be life-threatening. tell your doctor if you have heart or blood ve