By alluding to whitman’s poem in “i , too sing America “ Hughes was able to what ?

they are all talking about chocolate (next time you post a question with "which" post the choices too)

the unique function that the video specifically ascribes to sins near tunnels is "prohibiting certain cargo". tunnels have specific control signs such as minimum and maximum speed, the appropriate use of headlight and prohibited cargo. for your own safety it is important you understand the signs when approaching a tunnel.