Even though the refugee crisis in Europe reached its peak two years ago, countries are still trying to figure out what to do with the more than 150,000 refugees who want to stay in the E.U.
Austria adopted a face-veil ban in recent months and is seeing a rise of vandalism at Muslim businesses and mosques. The new Austrian government denies it is ostracizing Muslims.
At least one person was killed and many others injured when an explosion ripped through the hub. Fears of supply disruptions quickly caused energy prices to leap across Europe, especially in Italy.
The 31-year-old conservative foreign minister has moved his party sharply to the right on issues like immigration and Islam. He is widely expected to become Austria's chancellor after Sunday's vote.
The ban is part of a series of measures related to integrating immigrants. The country's foreign minister has called the full-face veil a symbol of a "counter-society."
The decision could have global consequences: The court ruled that the harsh words against an Austrian politician must be deleted from Facebook worldwide.
Austrian officials want to make sure "nothing would happen there ... that could support Nazi ideology in any way," says a government spokesman. But there's disagreement on how best to proceed.
Alexander Van der Bellen defeated Norbert Hofer of the conservative Freedom Party. Had Hofer won he would have become the first far-right president in Western Europe since World War II.