and so police say they are desensitizing the dogs to the smell of the drug. to business headlines it is time to make or break for time to make or break for blackberry, the company's z-10 smartphone goes on sale in the u.s. today. first at at&t, next week at verizon, once the definitive mobile device. it has been eclipsed by apple's iphone and google's android. analysts say it will be tough for blackberry to regain their former prominence. the taste will be the same, but pepsi's bottles are going to get a new look. the first redesign for its plastic bottles in 16 years. a little blockier and easier to hold. new bottles go into production next month. it will take a while to convert all those bottling plants. pepsi has been losing market share to coca-cola in recent years. let's take a check of the friday weather. it will feel a lot like winter in most of the nation. atlanta rain, snowy mix. and there will be rain from little rock to new orleans. blustery air around washington, d.c. >> temperatures in the