The United State's biggest social network are working together for building up a database of photos and videos to identify more quickly the worst terrorist activity and prevent  from spreading online.

The biggest social networkers will create a shared database that identifies images through unique digital fingerprint, making it easier to identify and remove worst propaganda imagery.

The program, will be expected to begin in early 2017, aims to convince government concerns. The social media content is increasingly driving terrorist activity and radicalization, while them also balancing free-speech issues, as reported by TC

According to a Joint post lead by the companies," There is no place for content that promotes terrorism on our hosted consumer services". They promised to take strong action against to those violate content.

Last year same companies banded together to identify and also removed child pornography from all their sites, by using the similar technique. The innovative idea was developed by the UK'S Internet Watch Foundation that extends beyond social networks; Google scans every Gmail user's account for child porn.

A social networking site is a tool for recruiting and spreading messages by the Islamic state and other's terrorist group. By using social media the terror group and supporters have added to the threat from common people to the elite class of society.

Very recent the White House top officials, including FBI Director James Comey, NSA director Mike Rogers dispatched to Silicon Valley on the discussion of use social media by violent extremist groups and how to use technology to identify terrorist center, as reported by Los Angeles Times

Under the new initiative, the companies promised, when violent content will be shared internally the other  companies will be notified and can use digital fingerprints to identify the same content on their own services to judge whether it violates the rule or not.

Meanwhile, the four companies say in future they will be looking information of additional companies.