Twitter is a place where people can share what they are doing, and not have to worry about it. When these two innocent British tourists started joking on their twitter accounts about partying in America, they were detained and sent back to Europe. They were thrown into cells with dangerous drug dealers and spoken to harshly over an innocent tweet. They have now been told that they will need to apply for Visas if they ever want to travel to America again.
Tell American Homeland Security to right their wrongs, and to have the officers who told Leigh and Emily they "f***ed up" be punished for their actions.
These two were tourists with no obvious intentions for terror, they merely wanted to go on vacation.