Not again - that was the cry of many Americans when they turned on their morning news on Friday. At least 12 people were killed and dozens wounded when a man wearing a gas mask and body armour opened fire and tossed a tear gas cannister into a cinema auditorium in the town of Aurora in Colorado. People were watching a midnight showing of the latest Batman movie, The Dark Night Rises. A 24-year-old former student named James Holmes was arrested shortly after. Police officers recovered four guns including a rifle, a shotgun and two glock handguns. This latest shooting took place just 30km away from Columbine High School where 13 people were shot dead by two students in 1999. For many Americans the right to bear arms is regarded as an essential freedom protected by the second amendment of the constitution. Politicians have been reluctant even to call for tougher gun control laws. But in a country where nearly 9,000 were murdered with guns in 2010, could that be about to change? Does the US need tough gun control laws? Inside Story Americas, with presenter Anand Naidoo, is joined by guests: Colin Goddard, who survived the Virginia Tech shooting in 2007 and works for the Brady Campaign to Prevent Gun Violence; Hubert Williams, the president of the Police Foundation who also chairs the National Law Enforcement Partnership to prevent gun violence; and Alan Gottlieb, the founder of the Second Amendent Foundation who argues for the rights of Americans to bear arms.