Wealthy financier Jay Bloom has shared text messages he exchanged with the late CEO of OceanGate Exploration, Stockton Rush, who had offered Bloom and his son discounted tickets to ride on the submersible to tour the Titanic. Bloom declined the offer, but the submersible, named Titan, was piloted by Rush and was lost at sea on June 18th. The tragedy has sparked a debate about the safety of submersible tours, with some questioning the wisdom of taking such a risk.