Why Stonewall Riots marked a 'sea change' for LGBTQ rights

On a June night in 1969, patrons of a New York City gay bar called the Stonewall Inn battled with police and set in motion the modern movement for gay rights. Fifty years later, the milestone anniversary of the event has sparked observations and celebrations nationwide -- as well as reflections from LGBTQ Americans about what cultural acceptance has meant to them. John Yang reports.