Using a 30mW green laser in the US may get you rescued, but it will also get you arrested
? If a 30 mW laser adheres to all of the FDA regulations I don't see them complaining. In any case 50 mW is where things begin getting risky for someone a few feet away, never mind a distant aircraft. You'd need several hundred *watts* (at least) to blind someone 37 miles away.
Regarding LED lights, the Surefire G2 LED was easily visible over 20 miles away as its reflector made an easily seen luminous dot.
How well do the NVG cope with a full moon reflecting off waves?