In this Wall Street Journal article, the author makes the case for why educated professionals who come from other countries (yes, these definitely would be boundary crossers) help keep our economy healthy. Photo by ElvertBarnes.

Key points:

• Immigrants make up a larger percentage, proportionally, of patents and co-founders of Silicon Valley companies.
• Foreign students are awarded 60% of all doctorate engineering degrees.
• According to the Department of Labor, those involved in science and engineering fields are responsible for more than 50% of sustained economic expansion.  

What's new (and scary): In a new study, researchers found that a majority of American-trained entrepreneurs who have returned to India and China believe they are doing better at "home" than they would be doing in the US.  America is no longer seen as the land of opportunity as it was in years past.