The following email was sent to the MIT community today from MIT President L. Rafael Reif. To the members of the MIT community, On Monday, in a surprising development, a division of Immigration and Customs Enforcement announced that it will not permit international students on F-1 visas to take a full online course load this fall while studying in the United States. As I wrote yesterday, this ruling has potentially serious implications for MIT’s international students and those enrolled at institutions across the country. This morning, in response, MIT and…