If you've ever visited a foreign county, you know you at required to fill out and carry around a form stating how long you intend to stay and where. In USA, this form is called I94, Arrival-Departure Record. My mother in law just arrived from Mexico to visit for a few weeks, and we were concerned she lost her form. After inquiring, I just learned that as of a month ago, our country no longer requires this for international visitors. In other words, we are saying that if you visit USA, you can stay as long as you please, and...