More old Viet Nam era technology

http://findarticles.com/p/articles/mi_m0IBS/is_3_26/ai_67544227

For those not familiar with our capabilities 30 or more years ago, it is hard to imagine what we are capable of now.

I have observed well trained artillery units using Q-4 radars identify incoming mortar rounds, locate the mortar, and have counter mortar fire in the air before the incoming rounds hit the ground.

I suspect technology has increased the response time quite a bit.