Who let the students out?

Someone needs to answer a simple question: Who let the students out? What bright school board member let thousands of high school kids out?(http://www.dfw.com/mld/dfw/news/local/14205503.htm)
Another question: what does the Mexican flag have to do with any of this? Beyond the flag, I was offended by placards or statements that the US had stolen Texas from Mexico.

Frankly, if you believe that the US stole Texas from Mexico then you should not live here. Go back to Mexico!

As an immigrant, I was offended by some of these demonstrators. They are not representative of legal immigrants, the people who followed the rules and are very proud to live in their adopted country.