A U.S.-trained scientist accused of shooting at FBI agents in Afghanistan is greeting potential jurors at her attempted murder trial in New York with a white scarf covering her face and an impromptu commentary on the proceedings.

Jury selection for the case against Aafia Siddiqui began Wednesday morning in federal court.

Siddiqui, a native of Pakistan, told jurors she is boycotting the trial. She says there are "too many injustices." She's had other outbursts at previous court hearings.

Prosecutors accuse the 37-year-old Siddiqui of grabbing a U.S. Army officer's rifle in 2008 and exchanging fire with U.S. soldiers and FBI agents. She was shot in the abdomen and denies she fired the weapon.