I think one of the most interesting and actionable takeaways from the previous discussions is that holders of weak passports with a US, Canada, or EU tourist visa gives tourist access to an increasing list of developing countries. The thinking seems to be, "If the US/UK/EU/Canada vetted the person, it's good enough for us, and that person would probably prefer to overstay in those places, not here." With visa validity periods trending upwards of 5-10 years, it's a good way to temporarily increase passport power.