I build discreet bomb shelters for wealthy American clients who fear nuclear war. Here are some of their common requests.

• Josh Jordan started Houston Bomb Shelter to construct emergency shelters for nuclear disasters.
• High-end clients will spend up to six figures for large shelters.
• Clients often want discretion to protect themselves from neighbors who don't have their own shelters.

This is an As Told To essay based on a conversation with Josh Jordan, a Texas-based engineer who founded Houston Bomb Shelter, which constructs private emergency shelters. It has been edited for length and clarity.