Three weeks after the failed mission to free her son Josh from an Iranian prison, Laura Fattal, of Elkins Park, is relentlessly on message, plotting new strategies and addressing criticisms that he put himself in harm's way. "Iran says the investigation is ongoing," she said in her first detailed interview since her 48 hours in Tehran. "If it is, please conclude it. Let our kids speak with their lawyer and go to trial. They will more than defend themselves." Josh Fattal, 28, and his friends Shane Bauer, 27, and Sarah Shourd, 31, were arrested 10 months ago for entering Iran...