Living on alert: A world after 9/11

A flag hangs at half staff in Jefferson City on September 11, 2013.

It has been 12 years since the September 11, 2001, terrorist attacks, but the memories of that day still linger in the minds of people across the country.

Despite the time passed, people wonder if it could happen again.

"It makes you second guess people, places and things, and you're looking at people and wondering if it's possible that this could happen again," Jefferson City resident Jimmy Davis said.

"It very well could [happen again], and the only thing we can do, I guess, is prepare for it and act accordingly when it does happen," Kansas City resident Travis Connor said.

Licensed professional counselor at Capital Region Medical Center Jim Wieberg said one of the reasons the fear from that day remains is that the attacks showed the country is not invincible.

"It brought it right home. Until then, we would hear of terrorism incidents but it was always out there, it was always in another country. It's here, and it can come here," Wieberg said.

Susan Irving, a California state resident visiting family in Linn, said because of events like September 11 and the Boston Marathon bombings she tries to avoid large crowds.

Besides that, though, she says she lives her day-to-day life as usual and doesn't give too much thought to terrorism.

Davis had the same mentality.

"You can't go around thinking like that. Then you're gonna be shut in and afraid to step out," he said.

Still, some say that devastating day 12 years ago changed their priorities for the better.

"I believe that as a result of 9/11 our own awareness of how precious life is, how important it is we protect that life, that's really comes to the forefront," Wieberg said.