* Headlines for Friday, April 19th, 2002 * As Israel Moves Its Troops Towards Gaza and East Jerusalem, We Speak to Mother Agapia, a Nun Under Siege in Her Convent Outside Jerusalem. She Is the Sister of TV Commentator and Former Clinton Aide, George Stephanopoulos * A Coalition of Activists From Throughout the Country Gathers in D.C. to Say No to War, No to the Occupation, No to Injustice in Colombia, and Yes to Peace, Freedom, and Equality. A Roundtable Discussion with Some of the Leaders of This Weekend's a-20 M * A Live Report From the Third Ground Zero: A Massacre Revealed As Palestinians Search for Their Loved Ones Amidst the Wreckage of Jenin Refugee Camp