Does Thatcher's 1986 'no evidence' statement on Rothschild check out against Hansard, and what do the primaries say about the Perry/Modin Fifth Man dispute?

claim-thatcher-1986-told-parliament-no-evidence-rothschild-soviet-spy rests entirely on Wikipedia (Tier 3). Two things there are below the sourcing floor for a surprising, contested, load-bearing claim:

1. The parliamentary quote — "I am advised that we have no evidence that he was ever a Soviet spy" — is a specific statement with a primary home in Hansard (December 1986). Confirm the exact wording, date, and whether it was a written or oral answer / statement.
2. The Fifth Man dispute — Roland Perry's 1994 book The Fifth Man named Rothschild and reportedly cited the KGB handler Yuri Modin; Modin is said to have later denied this and named John Cairncross instead. Both attributions currently trace only to Wikipedia plus (per the capture) "Spartacus Educational and UPI 1994 archive summaries." Chase the primaries: Perry's book text, any direct Modin statement or interview, and reliable coverage of Rothschild's 1986 public letter demanding to be cleared.

Why it matters. The note deliberately claims only the documented statement and the fact of the dispute, not that Rothschild was or wasn't a spy. Verifying (1) would let the note quote Hansard directly; resolving (2) would let it characterise the historiographical dispute on primaries rather than an encyclopedia summary.

Until at least the Hansard quote is confirmed, the note stays seedling and flagged.