I have two devices on the Hellfire II. One is in the ESAF system, the other is an impact sensor in the fuze that triggers the explosive train (warhead goes boom). I designed both about 14 years ago. Obviously, these function as advertised. Likewise for SDB II, JASM, JDAM, and just about everything else in the inventory.
As to clobbering the drug boats? Terrorists don't get trials. They have no Constitutional rights to recognize. Even if captured, they would end up in GTMO's Camp Echo.
What amazes me is that the Cartel can still find suckers to run the boats. With long range drones and satellite coverage, nothing trying to sneak out of Venezuela waters goes unseen.
Clearly, this violent interdiction serves another purpose. Apart from denying the Cartels their income, it puts massive pressure on the regime. If that pressure from the Cartels induces Maduro to order military action, his Air Force will evaporate in a few hours. His air defense system will be crushed. His Navy will be demolished, even if they never leave port. With no ability to project military power, his own military will become his greatest threat.
Trump is not shy to employ some Theodore Roosevelt gunboat diplomacy and enforce the Monroe Doctrine.