diff --git a/src/agents/factchecker.py b/src/agents/factchecker.py
index e12e2d1..2f5bff2 100644
--- a/src/agents/factchecker.py
+++ b/src/agents/factchecker.py
@@ -455,7 +455,11 @@ class FactCheckerAgent:
             status = fc.get("status", "developing")
             claim = fc.get("claim", "")
             sources = fc.get("sources_count", 0)
-            lines.append(f"- [{status}] ({sources} Quellen) {claim}")
+            evidence = (fc.get("evidence") or "")[:200]
+            line = f"- [{status}] ({sources} Quellen) {claim}"
+            if evidence:
+                line += f"\n  Evidenz: {evidence}"
+            lines.append(line)
         return "\n".join(lines)
 
     async def check(self, title: str, articles: list[dict], incident_type: str = "adhoc") -> tuple[list[dict], ClaudeUsage | None]:
diff --git a/src/agents/orchestrator.py b/src/agents/orchestrator.py
index 884e114..7c58429 100644
--- a/src/agents/orchestrator.py
+++ b/src/agents/orchestrator.py
@@ -1180,6 +1180,30 @@ class AgentOrchestrator:
                 contradicted_count = 0
                 status_changes = []
 
+                # --- Schutz gegen Massen-Downgrades ---
+                # Wenn >50% der established/confirmed Fakten auf unverified/unconfirmed
+                # herabgestuft wuerden, verwerfe die FC-Ergebnisse komplett.
+                established_ids = {ef["id"] for ef in existing_facts if ef.get("status") in ("established", "confirmed")}
+                if established_ids and fact_checks:
+                    from agents.factchecker import find_matching_claim
+                    _downgrade_count = 0
+                    _remaining_tmp = list(existing_facts)
+                    for _fc in fact_checks:
+                        _matched = find_matching_claim(_fc.get("claim", ""), _remaining_tmp)
+                        if _matched and _matched["id"] in established_ids:
+                            _new_st = _fc.get("status", "developing")
+                            if _new_st in ("unverified", "unconfirmed", "developing"):
+                                _downgrade_count += 1
+                            _remaining_tmp = [ef for ef in _remaining_tmp if ef["id"] != _matched["id"]]
+                    _downgrade_ratio = _downgrade_count / len(established_ids) if established_ids else 0
+                    if _downgrade_ratio > 0.5:
+                        logger.warning(
+                            f"Faktencheck-Ergebnisse verworfen: {_downgrade_count}/{len(established_ids)} "
+                            f"established Fakten wuerden herabgestuft ({_downgrade_ratio:.0%}). "
+                            f"Bestehende Fakten bleiben unveraendert."
+                        )
+                        fact_checks = []
+
                 # Mutable Kopie für Fuzzy-Matching
                 remaining_existing = list(existing_facts)