@KaTrian, you've given me a positively juicy idea. My imaginary US city has an extensive and prosperous Jewish community; in fact, the majority of my MCs' clientele is Jewish. It's true I never heard of Krav Maga back in the early '80s, but given the date you cite, there is NOTHING stopping one of my Jewish secondary characters from recommending my FMC try it. And if it's oriented towards self-defense, she might like it better than judo. Knowing her, she might be put off by the idea of bowing to the picture of Professor Kano. That would work, as long as she remains in the States. But in this plot, the manure's gonna hit the ventilator someplace in West Germany. Even back in 1983, I doubt they would let her bring in a handgun in her luggage. Though it wouldn't be a bad idea if she learned to shoot, in case she gets hold of someone else's weapon.