Requiring ID To Vote Is A Violation of One's Civil Rights

But not to buy ammunition?  The April 4, 2013 Sacramento Bee reports that the lower house of the California legislature has approved a bill to restrict ammunition sales.  Some of the restrictions are not spectacularly unreasonable: ID to buy ammo (because local governments with such requirements have apparently found people who are prohibited from gun ownership buying ammo -- a pretty clear indication that someone is illegally in possession).  Others are a bit mystifying, such as requiring reporting of purchases of more than 3000 rounds, except by police officers.  (How many cops are buying ammunition in those quantities for official purposes?  Isn't the department buying it?)  But the biggest issue here is why is requiring you to show ID to vote a problem -- but not a problem when buying ammo?