From The Truth About Guns:

The Second Amendment Foundation has filed a federal lawsuit in California challenging that state’s law requiring firearms dealers to video record all transactions, calling it a violation of First, Second, Fourth, Fifth and Fourteenth Amendment rights.

“Requiring firearms retailers to video record their transactions is not only an egregious violation of privacy,” said SAF founder and Executive Vice President Alan M. Gottlieb, “it involves an expense that is both cost-prohibitive, and could literally drive small dealers out of business. In addition, it would be impossible to record such transactions at gun shows, because at such events, dealers are merely vendors, operating in a large facility where such equipment would be impossible to install.”