these people are looking to do something completely out of the norm. we teach them the safety requirements. we teach them what they re going to be doing. reporter: then the ultimate test. an obstacle course where participants scoop, push, and even bowl. sometimes with great success. and sometimes not. i m on the challenge course and they tell me this is the easiest move, trying push this tire into the parking spot. it s pretty tough trying to figure out how to operate this thing, but a whole lot of fun. you can t reach that tree. reporter: jason and alisa also own a site contracting company and use heavy equipment all the time. one day they decided to share the fun with industry peers. we brought a group out to our shop, had a cookout. we decided to put them on a couple pieces of equipment. they had the afternoon of their lives. we realized we were on to something. reporter: less than a year old, the business may soon be on the move to other cities. but playing in this sand
well, if you re feeling a cold coming on, and plenty of us are this winter as it drags on, you might want to start taking zinc supplements. a new study finds taken within 24 hours of the onset of the cold, it can shorten that cold by at least a day and says you ll have less severe symptoms and that zinc can actually reduce your risk of getting a cold. we asked dr. richard besser about that. reporter: everyone s looking for a silver bullet when it comes to prevention. in theory it may prevent the rhinovirus from attaching to your nose and throat and prevent the virus from multiplying in your body. the theory is great. the study is not. they re not looking at any new data. they re looking at everything that s been published so far. some studies show it works but in those studies some people were taken a 10 milligram lozenge every hour and a half they were awake. that s a lot of zinc. many people experience that metallic taste as well as nausea. you have to weigh those benefits i mean
campbell s soup company managers announced a $10 million plan to help hungry and obese children today. the plan goes into action in cities where campbell s makes soup. and the final game between two jeopardy! champs and an ibm computer airs today. that computer, named watson, trounced the competition yesterday. go, humans. finally this half hour, there is a cat burglar on the loose in california and it s been accused in about 600 break-ins. victims and authorities aren t too worried about the thief, though, because it really is a cat burglar. a cat. vick lee has more. reporter: meet dusty. by day he s a house pet. when the sun goes down, it s time to hit the streets. dusty is a cat burglar. so, she always steals stuff. reporter: neighbors like 5-year-old ethan know him by his alias, clepto the cat. well, she took my mom s swimming clothes.
but first, passengers on united airlines could face travel delays today after the company grounded its fleet of 757 aircraft. the planes need an additional safety inspection following the update of air data computers. john garcia of our chicago station wls has the details. reporter: even as some united planes arrive at o hare, it is unclear how soon they will be back in the air. the airline is having to scramble at the last minute, while they try to service much of their fleet of 757s. for travelers, like mary davison, who is taking her kids to orlando, it s a huge headache. it is an inconvenience in that my husband will be waiting for us, because he s already down there for work. and i m not sure how we re going to get there now. reporter: sources tell abc news, united discovered the problem in one plane and quickly determined they had to fix nearly 100 757s. in order to comply with the government-regulated air worthiness directive, they need to modify the air data computer sy
there s nothing the fathers can do to get them back. reporter: in a country half a world away, young children taken by their mothers. american children who have been cut off from their fathers. i miss her sleeping on my chest. she used to lay down on my chest and fall asleep. i can still smell his hair and remember what it s like to kiss him on the neck and carry him to school. it feels like someone died. the problem is he s not dead. he s alive somewhere in japan. and i can t see him. reporter: there are 321 american children who have been spirited off to japan since 1994. how many of you have court-ordered custody of your children? how many of you actually get to see your children whenever you want to see them? none of you. i haven t seen a picture of him in two years. the only time i get to see my kids is when i dream about them. reporter: what is it about japan? japanese laws based on centuries of tradition favoring the mother. in japan there s no such thing as joint