Says euro is responsible for mass unemployment because it has not adapted itself to French economy
The cost of the scandal has risen to 4.9 million euros after new information was discovered
Move comes just a day after she reached the second round of French Presidential elections
Le Pen addressed tweets in 2015 to French TV journalist who had likened her party to jihadist group
Speaking on the EU, she said she wanted to 'release France from the tyranny' of Brussels