The Department of Homeland Security has renewed a bulletin that warns of the dangers of homegrown terrorists and that the climate we are in now is one of the most serious since 9/11.
"We face one of the most serious terror threat environments since the 9/11 attacks as foreign terrorist organizations continue to exploit the Internet to inspire, enable, or direct individuals already here in the homeland to commit terrorist acts."
The bulletin was first posted by the National Terrorism Advisory System in December 2015.
Since it's original posting, it has been renewed three times with updated language.
This renewal is set to expire in November and includes new warnings about different techniques used by terrorists like car bombs.
"Terrorist groups are urging recruits to adopt easy-to-use tools to target public places and events. Specific attack tactics have included the use of vehicle ramming, small arms, straight-edged blades or knives, and homemade explosives, as well as other acts such as taking hostages."
In a news release announcing the renewal, Homeland Security Secretary John Kelly said the decision came from the input from various intelligence and law enforcement partners.
"We are in a generational fight against terrorist groups and those they inspire, and for us to protect our homeland we will need constant vigilance and clear focus on staying a step ahead of the enemy."