Washington ? The latest post-9-11 security change for commercial planes may be cameras in the cabin and wireless devices for flight attendants to alert the cockpit crew to an emergency.

The Federal Aviation Administration plans to propose those ideas today and then take public comment before deciding whether to mandate the changes, The Associated Press has learned.

The plan is to give pilots a better idea of what’s happening in the cabin.

“The purpose of monitoring is to identify anyone requesting entry to the flight deck and to detect suspicious behavior or potential threats,” the FAA said in a notice to be published today.

Airlines would have the option of using other ways to meet the requirement.

The FAA would allow two years to install the cameras or come up with an alternative. The agency estimates the total cost of installing video systems would be $185.5 million over 10 years.