I have some things to say here...
@MAFOO has asked "Isn't this discrimination? Isn't up to the individual whether they want to work on a holy day or not? Should Intel really let itself be bullied by religious zealots like this?"
As someone who lives in Jerusalem, I saw what happened over the last weekend:
What Intel did was open one of its several factories in Israel, one that has been out of order in the last couple of years for financial reasons (mainly the new factory built in the southern region next to an existing one). Right before reopening the Har-Hotzvim fab Intel has announced that its religious employees (who had to work in other places during the last couple of years) are going to have to choose - work on Saturday or get downsized.
One of the most anti-religious MKs was interviewed on Friday, and she said that she wasn't supporting the acts of violence, but supporting the fight against a company that decided to enslave people 7 days a week (!!!) in the holy name of Capitalism.
Intel's fab isn't the first business in town to open on Saturday. It's just the first one to announce that people who want one rest-day per week are too spoiled to work...