Directions: The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Spell out the missing letters of the word. International applications are down 23% since 2003 for the universities. This was the result of increased security in the United States after the terrorist attacks in 2001. This increased security made it more difficult for students to get permits, or visas, to enter the US. Security measures also increased the time to process these visas.