"additional threats" is a correct and usable phrase in written English.
For example, "The violence escalated when the victim was presented with additional threats of bodily harm."
In addition, commercially important species such as salmonids face additional threats.
Many victims often receive additional threats from their attackers".
Rain and floods have posed additional threats, forcing some operations to be temporarily suspended.
Then there are the additional threats around sanitation and health – malaria, diarrhoea and cholera included.
"We have devised a system that introduces no additional threats into the environment,'' he told me.
"We have devised a system that introduces no additional threats into the environment," he told me.
In addition to previously unknown HAB organisms or toxins, an additional threat comes from the expansion or emergence of known HABs in areas where they have not previously occurred.
But now it poses an additional threat.
And there is now the additional threat of terrorism.
The prospect of paralyzing strikes poses an additional threat to the system this summer.
"Al-Nashiri did not provide any additional threat information during, or after, these interrogations".
