President Obama called on Congress on Tuesday to revisit gun control legislation, saying in the wake of Monday's deadly mass shooting at the Washington  Navy Yard that lawmakers should take what he considers "basic actions" to toughen the nation's gun laws.

In an interview with the Spanish-language television network Telemundo, Obama said the country's background check system for gun buyers is so weak it makes the United States vulnerable to mass shootings, such as the one last December that killed 26 small children at an elementary school in Newtown, Conn.