WAP99092304 - 23 SEPTEMBER 1999 - WASHINGTON, D. C., USA: Brian Mulroney, left, the former Prime Minister of Canada, and Paul Simon, former U. S. senator from Illinois, attend the dedication of an exhibit on the Berlin Wall at the Freedom Forum, a non-profit foundation dedicated to free speech, September 23, in Arlington, Virginia. The exhibit opening is timed to coincide with the 10th anniversary of the fall of the Berlin Wall on November 9. jr/jr/Joel Rennich UPI