you are all navigators and bombardiers, we're going to have a lead bombardier and a lead navigator. that is one of you guys. you're the lead guy, i'm going to really train you. you are the smartest guy on the crew. when you drop your bomb, everyone drops a bomb at the same time. you drop a smoke, it is called dropping on the leader. you put a highly skilled guy in the lead plane. you are likely to get a lot less mishaps on missions with well-trained crews. with those two strategies, the bombing starts to get a little more effective. when they went against these u-boats, what was the problem? student: they were bulletproof. prof. miller: bulletproof. bombproof. they are bunkers. they are not actually underground. take a shoebox, turn the shoebox over, put a little entranceway on there. the submarine floats into the ,rotection of the bunker reinforced concrete. it is as big as me. six feet tall of concrete. germans must go here and think how could we lose the war if we can build bunkers like this? here is the problem. the sub is under protection. you know we can't hit it. how do you s

optimism over the potential value of its rail unit and failed prospects, it is being reported that bombardier could jump. that would give them a value of dollars --a billion $8 billion. that could reduce it's debt. the company says interest in those jets has been overwhelming. of course, the other big story -- apple has shown off a wide range of other products. this includes two new iphone models and a new 3-d touch feature. these could help ease the concern about a slowodwdown in sales. after steve jobs has criticized the stylus, the apple pen will be one of those. has its own app store now. rishaad: you can find out how the 3-d touch was built. do read that it is in bloomberg business on bloomberg.com. looking ahead, china's premier reassuring delegates the world economic forum of have his views on the economy. barclays disagrees saying china is not on solid footing. this is "trending business." ♪ rishaad: china released its latest information data about 45 minutes ago. consumer prices unexpectedly up, while producer prices fell. let's dig deeper with this. areks for coming in, you saying t

>>james: if you eat this cheeseburger will tell you we can get a block bombardier's surf and what is celebrating a family in arizona's defense unsuspecting surprised when a block of mayor one of off out of the sky and write into the yard they're working to make it harder for thieves will tell you who is most at risk for i did it at the height of the tech yourself those stories and more coming up and the 5:00 hour for fast first of the stage collapsed yesterday while republican for the two candidates was addressing a crowd in san antonio, spokeswoman says it appears that the judge and oppose them trump is now tied one of the republican competitors and has been today is since house speaker an ounce of his weapon down will tell you what led up to him making that decision will bring you those pictures we come back. >>james: 06 person had died the following the deadly bus crash and washington state last week they're investigating the agency said there were earlier safety concerns about the company's vehicle to add more than 2 million out these to emissions standards they are facing and fr