Comment by PuppyTailWags

I wanted a bit of education outside this, so Wikipedia tells me the Jones act declares that cargo between US ports must be on US-flag, US-created, largely US-crew, US-owned ships. The Lexington Institute, a center-right thinktank focused on domestic security policy, has claimed(June 2016) it strengthens border security and reduces terrorism.

I guess my question is: how much is a stronger border security and terrorism reduction worth, economically?