North Dakota on Tuesday adopted the most restrictive abortion law in the United States, as the governor signed a bill that bans the procedure in most cases once a fetal heartbeat can be detected, as early as six weeks. Supporters of abortion rights said they would challenge the measure in court. Governor Jack Dalrymple on Tuesday also signed a bill that bans abortions based solely on genetic abnormalities, the first state ban of its kind, or based on the gender of the fetus. North Dakota is the latest state to pass measures to restrict abortions. Arkansas lawmakers earlier in March...