Premise:
"Emergency intervention to break the cycle of drunken driving and recurrent injury."
Hypothesis: Emergency intervention is the most effective means of combating drunken driving.

it is not possible to tell

Premise:
"and they'll keep them until some fool comes along and buys them"
Hypothesis: They sell them quickly and cheap.

no

Premise:
"Hence, the synergies of combining all three technologies were not explored."
Hypothesis: The possibility of combining the three technologies was not explored because of expense.
it is not possible to tell