Michelle Obama is most likely addressing corporate businesses that produce food. You can tell that she is directing it towards business because she says "If there is anyone here who can sell food to our kids, its you". This is showing how food companies really understand what goes on in kids head and this is why lucky charms is the color it is. It attracts kids to the food.
You take a story and explain the entire thing with only a couple paragraphs, and you don't want to give away any special details that way a person can know a little about the book and want to read it. Like a "A dog and His Ball" is about a lost dog who doesn't have a family and finds an old ball to play with. You would put this on the back of a book and then people would be drawn to read this book. ( I just made something up so it may not make sense sorry.)
I'm not really sure I understand what you are asking, but I tried to answer the best I could, please let me know if this isn't what you meant.
<u>Answer:</u>
There is one secret and there is also the development of fear that the shock which her brother will get might kill her. At the same time, she still have hope that she might get her brother back and believes that her brother is alive out. She further believes that her brother has not left her. She also makes preparations believing that her brother will come back for her. This is the reason why she includes the reasons of the Seminoles history and their situation today.