Why didn't the Senate ask if Comey had leaked other information to the press?

[healthmyths]

Comey revealed in his Senate Intelligence Committee testimony that he asked a friend at Columbia University to leak one of the memos he kept about his conversations with Trump.

Comey admits to leaking Trump memo to get special prosecutor

 

[healthmyths]

Reality Winner Was Arrested For Leaking An NSA Memo. Here’s What We Know About Her.
The federal contractor — who allegedly leaked a document proving Russian meddling in the election — doesn’t seem to be a big fan of the president.
Reality Winner Was Arrested For Leaking An NSA Memo. Here's What We Know About Her. | HuffPost

Why was she arrested and Comey is still free?

 

[Iceweasel]

Comey probably studied from the J Edgar Hoover handbook and has some dirt on everybody.