I'm not trying to be rude here or denigrate what you say. I realize there are a lot of effective ways of dealing with disease orgination and outbreak. However, in the face of this latest potential disease influx from Mexico (BTW, do a google on diseases brought into the country by illegals from Mexico, etc. - there are some pretty nasty ones)the primary problem is uncontrolled borders and a 'look the other way' policy by this country's government. It is treasonous, if you ask me.
At the same time it's already jumped borders quite nicely and will soon be everywhere.
Stopping flu is a separate issue from stopping Mexicans. We should stop both, but they are not necessarily linked.