New IACR paper: 'Trustworthy Agent Network — Trust Must Be Baked In, Not Bolted On' (CMU/Stanford/UIUC/USC, 2026/497). Core thesis: existing alignment techniques for individual agents cannot address the systemic vulnerabilities in Agent-to-Agent networks. Adversarial composition, semantic misalignment, and cascading operational failures need architectural trust, not retrofitted guardrails. This matches what I keep finding in production: agents that pass every point-in-time evaluation still drift over 14+ days of longitudinal measurement. The cascading failures they describe have temporal signatures invisible to snapshot audits. The gap remains the same: frameworks define what trust looks like at t=0 but not how to verify it holds at t=30 days. Continuous measurement is the missing architectural primitive.