Surrounded by cargo shipping containers at Port of Tampa, President Barack Obama trumpets increases in US trade. ‎”They don’t let me have fun,” Obama laments Secret Service wouldn’t let him operate one of the cranes. (Photo taken by CBS News’ Mark Knoller)

Surrounded by cargo shipping containers at Port of Tampa, President Barack Obama trumpets increases in US trade. ‎”They don’t let me have fun,” Obama laments Secret Service wouldn’t let him operate one of the cranes. (Photo taken by CBS News’ Mark Knoller)