OZBUSDRIVER may be close to the mark when it comes to the future, sadly.
If we assume:
1. l@zers will be impossible to eliminate, especially from those intent on causing malicious disruption to aviation - criminal and terrorist elements. Publicity of the crime can exacerbate this problem.
2. There will always be ignorant morons getting their hands on l@zers after a few drinks, tagging clouds and jets, without regard to the consequences - ie, highway overpass rock-chuckers. Publicity of the crime's penalty can help this problem, but only to a limited degree - parents can lock away industrial l@zers, etc.
Then the only responsible course of action is defensive. In which case what practical options are available, PPRUNERS?
- Mandated AUTOLAND? Cost? Cat 3C ILS or equivalent GLS/GBAS fast-tracking & subsidy?
- Eyesight protection?
- Additional cockpit window lamination?
Surprisingly there's quite an extensive wikipedia entry on
l@zers and aviation safety covering this subject.