Jury selection begins Tuesday in a trial that pro-life advocate Mark Houck's attorneys say could have major implications for how pro-life supporters are allowed to try and advance their message. Houck's case has drawn national attention, given the circumstances of his arrest last September. In an early morning raid at his home, federal agents took Houck into custody nearly a year after he and Planned Parenthood volunteer Brice Love got into a physical altercation outside a Philadelphia abortion clinic. Houck's attorney, Peter Breen, says his client was targeted for his pro-life advocacy.