WASHINGTON, Feb. 12 -- Rep. Dusty Johnson, R-South Dakota, issued the following news release: U.S. Representative Dusty Johnson (R-S.D.) announced that his office is seeking internship applicants for the summer in his Washington, D.C., Rapid City, Aberdeen, and Sioux Falls offices.  Duties of a congressional intern will include researching legislation, attending committee hearings and briefings, leading tours of the U.S. Capitol, handling constituent phone calls, sorting mail, and providing s  more