WASHINGTON — Tighter gun control and stronger law enforcement in Southwestern states were recommended Thursday by lawmakers concerned about drug violence in Mexico possibly spilling across the border. --snip-- "The United States and Mexico border violence can only be solved if we look at all parts of the equation," Rep. John Tierney, D-Mass., said Thursday during a House subcommittee considering changes to U.S. gun laws. "Let’s examine our gun laws, let’s cut down on U.S. drug consumption, let’s ask there to be more resources to root out drug-money laundering," he said...