1.   Nobody gets to bother the safari tourists and they are escorted everywhere to ensure that this remains true.

2.   This is particularly frustrating because American currency is a lingua franca for the safari tourists and business executives who are increasingly criss-crossing Africa.

3.   This is particularly frustrating because U.S. currency is a lingua franca for the safari tourists and business executives who are increasingly criss-crossing Africa.

4.   Unlike some other African countries, Tanzania receives little military assistance, and few Americans visit, aside from a steady stream of safari tourists.