Bahrain has barred leading human rights activist Maryam Alkhawaja from entering the country amid a government crackdown ahead of pro-democracy protests planned for this week. On Friday, British Airways blocked Alkhawaja from boarding a flight home due to a request from the Bahraini government. Alkhawaja is acting president of the Bahrain Center for Human Rights, which released a statement saying she wanted to visit Bahrain in order to help monitor the situation on the ground and to see her father and sister, activists Abdulhadi and Zainab Alkhawaja, who are both in prison. Click here to see our recent interview with Maryam Alkhawaja.