vaux cano erupts in western mexico prompting hundreds of evacuations, check it out, erruption intensified thursday became increasingly volatile over the weekend. it is spewing ash more than 4 miles into the skies. officials describe the volcano's activity as atypical. they say it is showing similar science to a major erruption back in 1913. >>> and, now unusual obstacle for firefighters battling this wild fire in southern california. they had to briefly grounds their air tankers because a drone flew too close to the fire. the tankers got back in the air after about a ten minute delay. this is the fourth time in the last month that a drone had disrupted fire fighting effort, in california. keep them on the ground, folks, common. still ahead this morning david letterman takes brief break from his retirement to crack few more jokes. we'll have his new top ten list coming up. also, this is not your average sprint up the art museum steps. we'll explain why it means so much more to that teenager in the ball cap right there. >>> and call this a fed ex fiasco. simple trip to make some copies, end