President Donald Trump has said he wants to achieve "world peace," but his rejection of the Obama-era nuclear deal may only lead to more conflict with Iran.
Cybersecurity pioneer John McAfee says only a fool would think there is effective cyber defence.
A new report suggests that some facilities could be hacked using "nothing more than a flash drive."
Experts warn that a cyber attack on the national grid or water infrastructure could have "catastrophic" effects.
The former NSA contractor thinks the U.S. has been too focused on offensive capabilities.