Yes bitcoin is really secure. no one can steal bitcoin, except for our own carelessness. 
The government can not be that easy to ban bitcoin transactions, because bitcoin is the future.
yesthe bitcoin is really secure it depends on you on how you use or treat your bitcoin safeness, the bitcoin is safe and yes you're right no can steal bitcoin, except for your own carelessness. no gorvenrment nor any organization can control the bitcoin.The government can not be that easy to ban bitcoin transactions, because bitcoin is the future.