While systems programming languages have greatly evolved since the introduction of C more than 40 years ago, our capacity for dumb mistakes with enormous consequences has remained unchanged, with vivid examples regularly in the news. This O'Reilly report examines Rust, a new systems programming language that combines safety and security with performance on a par with C and C++. Author Jim Blandy from Mozilla explains how Rust achieves this combination via a sophisticated and flexible type system, working together with a novel borrow checker.