"Revelations" is not emotional, it's a form of "reveal".
"After PRISM Revelations" simply means "After PRISM was revealed", since it was hidden from the public before. So, Snowden revealed the existence and scope of PRISM to the group of people whose search behavior this study is analyzing (the general public).
Not an emotional word and, overall, not bad writing in the study.
"After PRISM Revelations" simply means "After PRISM was revealed", since it was hidden from the public before. So, Snowden revealed the existence and scope of PRISM to the group of people whose search behavior this study is analyzing (the general public).
Not an emotional word and, overall, not bad writing in the study.