The story line actually covers it quite well in having him struggle with the thought of whether or not he can make them safe enough (e.g. he's other places talked of the battery in his chest having the energy of a small sun) to make them accessible.

The story line in question comes after one where someone has scavenged his tech from broken parts of Iron Man armor and used them in terrorist attacks, and at the same time as he's put together a purely "defensive" Iron Man suit for Pepper Potts called Rescue, and he decides to rebuild his company around civilian applications of the underlying tech,

Iron Man is actually quite interesting in that respect, as a lot of the story lines delve into him struggling with whether or not he should produce weapons to stop bad guys or come up with a design to find a counter to them before a bad guy comes up with the same design, vs. finding civilian applications without inadvertently handing bad guys new weapons. Some of those story lines make poor arguments, but at least the Iron Man story lines are trying unlike FF, I feel, where it's "let's whip up something new amazing before breakfast and then never do anything with it", while Tony Stark grapples with the issues of commercializing his inventions all the time, and often has to deal with fallout from it.