A US citizen from New Jersey is accused of attempting to join the al Shabaab terrorist group and tweeting threats to bomb America in support of Hamas after its October 7 attack on Israel. Karrem Nasr, 23, was arrested December 14 after flying to Nairobi, Kenya, where prosecutors say he was planning to meet with al Shabaab members before traveling to train in Somalia, where the terror group is based. Prosecutors say Nasr, using the X moniker 'Egyptian Muslim', last month posted that 'Jihad on your home turf' was 'coming soon to a US location near you,' posting airplane, bomb,...