Suppose you are the director of the ISP that serves the email need of 10,000 customers. Youhave received dozens of complaints from them every week about the amount ofspam they are receiving. Meanwhile, Americans spammers arehacking into computers in Jamborea (an East Asian country) andusing them to mail spam back to the United States. Youestimate that at least 99 percent of email originating from Jamborea is spam. A few of the messages, however, areprobably legitimate emails. Should you do anything to restrict theflow of email messages from Jamborea to customers?