Salman Khan releases video confirming Dubai trip
Amputees control bionic legs with their thoughts
Six big banks fined $6 billion
Saudi envoy to UN talks about Yemen talks
ISIL seizes Iraq's Ramadi
Libyan raids aim to thwart people smugglers
Riyadh conference ends with reiterated support for Yemeni president
Sensor suits help measure spring in dancers' steps
Obama joins Twitter, sends his first tweet