NRA, San Francisco battle over gun-control laws

The San Francisco Examiner reports:

San Francisco attempted to strengthen two local gun-control laws Tuesday to protect from legal challenges that could strike them from the books.

Handguns in someone’s San Francisco residence cannot be left out in the open, but instead must be either locked in a container or disabled with a trigger lock, under a 2007 city law. Another law, adopted in 1994, prohibits the sale of ammunition such as hollow-point bullets, which expand upon impact.

The National Rifle Association has sued The City over these two laws in federal court as being unconstitutional.

Supervisor Ross Mirkarimi’s legislation that added more facts justifying the passage of the laws to bolster their chances to survive the legal challenge was unanimously approved Tuesday by the Board of Supervisors.
Why can't San Francisco accept a basic civil right to defend oneself?