the flight. it was a voluntary action which guided the planes toward the mountain. >> reporter: more than a week and a half into the investigation, officials are moving closer to answering key questions. but the biggest question of all remains unanswered -- why. >> the leaders of seven political parties in the uk face off ahead of the country's parliamentary elections. the key moments from that heated debate just ahead. plus, after mounting pressure from businesses and gay rights supporters, lawmakers in one u.s. state unveiled promises and changes to a controversial religious freedom law. reinvent . from pharmaceuticals to 3d prototyping, biotech to clean energy. whether your business is moving, expanding or just getting started... only new york offers you zero taxes for 10 years with startup ny, business incubators that partner companies with universities, and venture capital funding for high growth industries. see how new york can grow your business and create jobs.