"As an Iranian journalist and activist living in exile in the United States aired criticism of Iran's human rights abuses, Tehran was listening too.

Members of an Eastern European organized crime gang scouted her Brooklyn home and plotted to kill her in a murder-for-hire scheme directed from Iran, according to the Justice Department, which foiled the plan and brought criminal charges.

The episodes reflect the extreme measures taken by countries like China and Iran to intimidate, harass and sometimes plot attacks against political opponents and activists who live in the U.S.

They show the frightening consequences that geopolitical tensions can have for ordinary citizens as governments historically intolerant of dissent inside their own borders are increasingly keeping a threatening watch on those who speak out thousands of miles away.

"We're not living in fear, we're not living in paranoia, but the reality is very clear " that the Islamic Republic wants us dead, and we have to look over our shoulder every day," the Iranian journalist, Masih Alinejad, said in an interview."