Maritime threat | Government homework help

Assuming cyber, WMD, and small boats pose threat #1, #2, and #3, what would be maritime threat number 4? Why did you pick this one and what can the on-going public-private security regime do to address it? This of this from an asymmetric perspective.   

The post needs to be at least 400 words in APA format. Please use the link below for resources/sources and refer to Week 8.