I do think this book could be ammended... It deals priamrily more with abuses in Islamic and Asian countries. Stalin's purges were specifically targeted at some Christians. Moreover, Christians endure a hostile media environment in America and Europe that no other group seems to be subject to.
Shea examines abuses against both Catholic Christians and Protestant Christians (unlike the Paul Marshall book Their Blood Cries Out) comitted primarily in the countries of China, Sudan, Pakistan, North Korea, Saudi Arabia, Vietnam, Egypt, Nigeria, Cuba, Laos, and Uzbekistan.
Published in 1997, Shea could no doubt write a companion volume based on the persecution and death of Christians in the years since.
The book offers some excellent resolutions and calls for ways that Christians can respond to the persecution and help.
This is an important book that has received far less attention that it ought.