Anti-Semitism comes back to haunt Europe
It has been in the background at some of the demonstrations against Israeli actions in Gaza.
Recently, during a protest in Paris, a synagogue was attacked and there were chants of "Jews to the gas chambers". In Sarcelles they used the slogan "death to the Jews" and a kosher market was looted.
Jewish groups have tracked an increase in the use of the words "dirty Jew" on Twitter.
In Berlin, too, similar language has been used at protest marches. An imam at a Berlin mosque apparently called for the murder of Zionist Jews. It led the Israeli Ambassador to Berlin, Yakov Hadas-Handelsman, to say "they pursue the Jews in the streets of Berlin as if it were in 1938".
The centre-left Social Democrats (SPD), in coalition with Chancellor Angel Merkel, described the incidents as "completely unbearable and unacceptable".
Europe's troubles exposed by MH17 crash
Ukraine exposes Europe. Its agony and tragedy casts an unrelenting gaze on Europe's leaders. When it comes to sending a convincing message to Russia there have been months of indecision, weakness and self-interest.
Even after the reported shooting down of the Malaysian airliner, Europe's foreign ministers struggled to convince. They described their decisions as "forceful" but it remains unclear how many names will be added to the list of those facing travel bans and a freeze of their assets. It is said they will include some of Russian President Vladimir Putin's cronies. We shall see.
MH17 plane crash: EU moment of decision
For months the EU has displayed extreme reluctance over tightening sanctions against Russia over Ukraine. It has preferred to take small steps - travel bans and asset freezes against individuals - rather than to go after the "inner circle"' around President Vladimir Putin.
And Europe's leaders have repeatedly shied away from what they call Level Three sanctions - going after sectors in the Russian economy.
The real Jean-Claude Juncker
In the end Jean-Claude Juncker's anointment as Europe's most powerful official came with moments of theatre.
When Mr Juncker made an impassioned defence of the euro - "the single currency didn't split Europe... it defends Europe" - there were howls of derision from the UKIP benches. Nigel Farage weighed in saying that "nobody knew him" and that his name had "appeared on no ballot paper".
Europe's Mr President
Sometime on Tuesday morning Jean-Claude Juncker will become the most powerful official in Europe.
Almost certainly he will get the backing of more than 376 MEPs and so win approval from the European Parliament. In November he will take over as President of the European Commission.
Europe: Big jobs and low growth
This is a week which will decide some of the ins and outs - who will be the stars in the EU firmament.
It is a game played with some intensity. The nation states are all proposing names to be their EU commissioner - who gets what will tell us much about power and influence in Brussels over the next five years. And who becomes the President of the European Council and the High Representative for Foreign Affairs. But more of that tomorrow.
European Parliament: The power battles begin again
In Strasbourg on Tuesday the new and increasingly powerful European Parliament is meeting.
It will bristle with energy. There will be a parade of anti-establishment figures, many of whom want to shake the EU temple. Marine Le Pen, Nigel Farage, Beppe Grillo and others will stalk the corridors and attract the cameras like moths to a flame.