A pro-Palestinian activist whose home was the target of a foiled firebombing plot had previously filed a federal lawsuit accusing a far-right pro-Israel group of orchestrating threats and intimidation against her. Weeks before authorities arrested a New Jersey man accused of plotting a Molotov cocktail attack on her home, activist Nerdeen Kiswani filed a lawsuit against Betar Zionist Organization and several of its leaders under the Ku Klux Klan Act of 1871, a Reconstruction-era law originally designed to combat KKK violence. Kiswani’s suit, filed on Feb. 26, alleges a monthslong campaign of stalking, intimidation and racially motivated threats, including offers of cash rewards to anyone who physically harmed her and repeated confrontations at demonstrations across New York City.…