Soaring gun sales and applications for carry permits following the Newtown, Conn., school shooting last month could mean many more people are carrying around guns for the first time. With fears for personal safety and the possibility of a crackdown in gun laws, merchandise has flown off the shelves at local gun shops, and applications in Hall County for the Georgia Weapons Carry License increased in the first three weeks of December — from 26 in 2011 to 190 in 2012. Some worry that puts more people on the streets who don’t know how to use the weapons.