John Kerry shows the evidence against Syria

Jooohn Kerry, failed presidential candidate that couldn’t even beat George Bush… (that’s got to hurt) Gave an excellent speech to the US Senate, going through all the evidence for War with Syria… whilst taking great care not to show anyone any evidence or mention any specifics. Perhaps someone should explain what the word ‘evidence’ means.
Why on Earth would they not want to go onto the roof tops and show the world the evidence? Hiding it only raises questions.