Chau Nguyen's 5 p.m. report on the proposed city ordinance.

Carol Chang is friendly with all of her customers, but she's also cautious.

Behind her bulletproof glass, Chang runs a small convenience store in southwest Houston.

“Of course you have to be careful around your area,” said Chang.

The glass was installed after a senseless crime.

Five years ago, the store's former owner was shot dead during a robbery.

Then there's the latest robbery. In July, a storeowner was murdered at his store on Harwin.

A surveillance camera caught the crime in progress.

“People say that after law enforcement it is the most dangerous career choice or line of work,” Houston Councilman M.J. Khan said of convenience store owners and clerks.

So instead of just suggesting storeowners take precautions like installing cameras, police and city leaders want to make it a requirement by law.

But in a business where storeowners like Carol Chang claim to make money by nickels and dimes, she thinks forcing a store to install security will cost them their business.

“A lot people think convenience stores make a lot of money, but the truth is when you start a business then you find out what happened,” said Chang.

We're told requirements will vary depending on the store's location. The higher the crime in the area, the more security measures they'll need.

“We'll have a timeline where they would have to have those in place in the future,” said Houston Assistant Police Chief John Trevino.

Because police believe every storeowner should be as safe as Carol Chang.