charlie: we talk about usta and developing talent. how do you do that?have seen waves of american talent, strong one decade but not so much in other decades. katrina: i think we have had strength throughout the sport overtime. it is about how the players really i don't. developing is providing opportunities. what we are doing with our program and providing the opportunity for these kids to learn the sport with kid size equipment, smaller rackets, smaller courts so they can really understand the movement and strokes at an early age, they can develop that much quicker. if i had that opportunity at that age, i might have had a better forehand than i did. it is about making sure we have the proper programs for them that are available, that are accessible to everyone in every community. charlie: how about participation of african-americans in tennis? katrina: we have had a big spike in that over the years, particularly with venus and serena in there ascension. you had kids that wanted to be like them. it is like any major athlete -- like michael jordan and ba

usta for jack's the experts will hold $137 billion, the forecast of agriculture impacts of 100.5 billion, given a trade surplus and agriculture products and yes, i set a surplus of $22.5 billion. so for all the criticisms of our trade deals, when agriculture one art negotiators to know the trade deals and open markets are largely beneficial to american farmers and ranchers into the communities we live in and do her business in and reserve families. there will be opportunities during these negotiations to talk about issues concerning us with commodity, it's important to enter these talks with cool heads and focus on the common goals that we have, the three groups here agree that trade helps all of our citizens in all of our farmers and ranchers are countries. we look forward to a better agreement for the future is modernized for my modern agriculture. thank you. >> next, we have ron, president of the canadian federation of agriculture. >> thank you. thank you to the american farm bureau for the hospitality. we had the opportunity to have lunch before the press conference and give us an op

the president said that the usta.the mexican side, yes, the wall is a nonnegotiating starter, but how do they feel about narko terrorism? it's an enormously long bothered, very complicated, and the u.s. and mexican authorities have worked well. all the illegal immigrants that come through latin america, south america, they get stopped by the mexican authorities. is the mexican government going to use those negotiating points as they come forward to the americans? i'd love to hear from the ambassador on those issues. david: mr. ambassador? ambassador garza: i think those sorts of points are going to be implicit. i think it would be a mistake to be too explicit or too overt in terms of using those sorts f things as leverage points. i think you've seen them talk about those things in a very general sense over the course of the last months, as recently as last week. but i think being too explicit about that would probably not be a good approach. shawn: in terms of not being too explicit, how do they feel about the preside