Via NBC News:

The nation is on edge in the wake of brutal beheadings of journalists by Islamic extremists — with more Americans saying the United States is less safe now than at any point since 9/11, a new NBC News/Wall Street Journal Poll shows.

The exclusive poll reveals that 47% of Americans believe the country is less safe now than before the Sept. 11, 2001, terrorist attacks. That’s a significant increase from even a year after the twin towers fell when in September 2002 just 20% of the country said the nation was less safe. The level of fear across America also is up substantially from last year when 28% felt the same way.

In fact, just 26% of Americans now feel the nation is safer than before 9/11.

The numbers are a backdrop for the primetime speech President Obama will deliver on Wednesday night outlining his plan to combat the terrorist group ISIS, which has taken over parts of Iraq and Syria, beheaded two American journalists, distributed images of the killings in via gruesome videos, and has launched a social media campaign to extend its reach.